4.3 (a) group 1
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Alkali metals are elements found in Group 1 of the periodic table, including lithium, sodium, potassium, rubidium, cesium, and francium. They have low melting and boiling points, are soft, and become liquid or gas at room temperature as you move down the group. Their density increases as atomic mass increases more than atomic radius.
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Alkali metal
This document provides information about alkali metals and describes the extraction and uses of sodium and sodium compounds. It discusses the periodic table classification of alkali metals. Key points include:
- Alkali metals are soft, silvery-white reactive metals found in Group 1 of the periodic table.
- Sodium is extracted commercially via the Downs process, which involves electrolysis of molten sodium chloride.
- Sodium reacts violently with water and is used to produce sodium hydroxide and other sodium compounds.
- Sodium hydroxide and sodium carbonate are manufactured via electrolysis or other chemical processes and have various industrial and household applications.
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Alkali metals
Alkali metals have a single outer electron, making them highly reactive and electropositive. They are never found naturally in their elemental forms, instead occurring as oxides, halides, borates, silicates, and nitrates. Alkali metals increase in size down the group and have low ionization energies, with lithium being the smallest and most reactive and cesium being the largest and least reactive. They react vigorously with air, water, halogens, and dihydrogen to form ionic compounds. Common uses include softening hard water, manufacturing glass, detergents, and as reducing agents.
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The document discusses the halogens, which are the elements in group 17 of the periodic table (fluorine, chlorine, bromine, iodine, astatine). It provides details about their general properties, including their electron configuration, existence as diatomic molecules, colors, reactivity, and ability to gain electrons to achieve stable electronic structures. It also describes their physical and chemical properties such as ionization energy, electronegativity, electron affinity, and oxidizing power (which decreases down the group). Peculiar properties of fluorine are highlighted. Uses of halogens and facts about their presence in humans are also mentioned. Interhalogen compounds and pseudohalides/pseudohalogens
Halogens part 2 chemical properties
1. The document discusses the reactions of halogens, including their reactions with metals like sodium and iron, and with non-metals like hydrogen.
2. It explains that the reactivity of the halogens decreases down the group, with fluorine being the most reactive and reacting violently with iron wool and hydrogen, while iodine reacts only slowly.
3. Halogen displacement reactions are described as redox reactions, where the more reactive halogen oxidizes the halide ion, gaining electrons itself and being reduced to form halide ions.
D block-elements
1) D-block elements are those whose last electron enters the d orbital, lying between s- and p-block elements.
2) Not all d-block elements are transition elements, which are defined as having partially filled d orbitals, while all transition elements are d-block.
3) General properties of d-block elements include high melting/boiling points due to strong metallic bonds, variable oxidation states, and many forming colored ions or complexes.
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This document provides information about alkali metals and describes the extraction and uses of sodium and sodium compounds. It discusses the periodic table classification of alkali metals. Key points include:
- Alkali metals are soft, silvery-white reactive metals found in Group 1 of the periodic table.
- Sodium is extracted commercially via the Downs process, which involves electrolysis of molten sodium chloride.
- Sodium reacts violently with water and is used to produce sodium hydroxide and other sodium compounds.
- Sodium hydroxide and sodium carbonate are manufactured via electrolysis or other chemical processes and have various industrial and household applications.
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1. The document discusses the reactions of halogens, including their reactions with metals like sodium and iron, and with non-metals like hydrogen.
2. It explains that the reactivity of the halogens decreases down the group, with fluorine being the most reactive and reacting violently with iron wool and hydrogen, while iodine reacts only slowly.
3. Halogen displacement reactions are described as redox reactions, where the more reactive halogen oxidizes the halide ion, gaining electrons itself and being reduced to form halide ions.
D block-elements
1) D-block elements are those whose last electron enters the d orbital, lying between s- and p-block elements.
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Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
20240609 QFM020 Irresponsible AI Reading List May 2024
Everything I found interesting about the irresponsible use of machine intelligence in May 2024
Communications Mining Series - Zero to Hero - Session 1
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Full-RAG: A modern architecture for hyper-personalization
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Infrastructure Challenges in Scaling RAG with Custom AI models
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
Building Production Ready Search Pipelines with Spark and Milvus
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Video Streaming: Then, Now, and in the Future
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Best 20 SEO Techniques To Improve Website Visibility In SERP
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
Artificial Intelligence for XMLDevelopment
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Uni Systems Copilot event_05062024_C.Vlachos.pdf
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
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AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
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Climate Impact of Software Testing at Nordic Testing Days
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20240609 QFM020 Irresponsible AI Reading List May 2024
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Communications Mining Series - Zero to Hero - Session 1
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Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
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4.3 (a) group 1
- 1. Defination An alkali metal is any element other than hydrogen found in the first column of the periodic table. These elements include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr): 11/20/13 1
- 2. The Group 17 elements ( F, Cl, Br, I, At) 11/20/13 2
- 3. GROUP 1 ( Lithium, Sodium, Potassium, Rubidium, Cesium, Francium ) BOILING BOILING POINT POINT 11/20/13 DENSITY DENSITY GENERAL PHYSICAL PROPERTIES MELTING MELTING POINT POINT 3
- 4. Phase Color Physical Properties *things that we can see Density Melting point Boiling point Atomic number Atomic radii Electronegativity 11/20/13 4
- 5. Halogen Atomic number Electron Configuration Atomic radii (nm) Electro negativity Flourine Chlorine Bromine Iodine 9 17 35 53 2.7 2.8.7 2.8.18.7 2.8.18.18.7 0.071 0.099 0.144 0.133 4.0 3.0 2.8 2.5 Atomic Number The atomic number can be fined from periodic table Example: Atomic number 17 Cl Down the group, atomic number will increase 11/20/13 5
- 6. Atomic radii or Atomic Size Based on atomic number. Example : -F atomic number is 9 so that the electron configuration is 2:7 . This shows that F has 2 shells. -I atomic number is 53, the electron configuration is 2:8:18:18:7. This show that has 5 shells. -the size of I atom is bigger than F Down the group the atomic radii or size is increase F 11/20/13 I 6
- 7. Electronegativity Is the power of outer electron attraction to the nucleus Decrease going down a group The large atomic number caused the large size So that the outer most shell is far from the nucleus Then the electronegativity is lower 11/20/13 7
- 8. Density Has lower density But density is increase when going down the group Melting and Boiling Point. Has lower melting and boiling point Because of the lower Van der Waals force between the molecule. But the melting and boiling point increase when going down the group. Parallel to the density of each elements . 11/20/13 8
- 9. Phase The phase changes from gaseous to liquid to solid when going down the group Because the melting and boiling point is increase. Halogen Flourine Chlorine Bromine Iodine 11/20/13 Phase Gas Gas Liquid Solid 9
- 10. Colour Every elements has different colours Pale yellow gas 11/20/13 Greenish yellow gas 10
- 12. alkaline water CHEMICAL PROPERTIES OF HALOGEN GROUPS metal 11/20/13 12
- 13. Changes in Physical Properties from Lithium to Potassium Boiling point decrease from Lithium to Potassium the metal bonding will weak because of the increasing of atomic size 11/20/13 13
- 14. Changes in Physical Properties Changes in Physical Properties from Lithium Potassium from Lithium toto Kalium Melting point decrease from Lithium to Potassium the metal bonding will weak because of the increasing of atomic size 11/20/13 14
- 15. Changes in Physical Properties from Lithium to Kalium Density increase from Lithium to Potassium the increasing of atomic mass is higher than the increasing of atomic radius 11/20/13 15
- 16. Changes in Physical Properties from Lithium to Potassium Boiling/ Elements Li Na K Rb Melting Density Point D e c r e a s e I n c r e a s e Ce 11/20/13 16
- 17. PHYSICAL APPEARANCE COL OR H DNE AR SS Lithium • Soft ( easily cut with knife ) Sodium • Grey Potassium Rubidium Cesium 11/20/13 17
- 19. MELTING POINT Li BOILING POINT DENSITY 181 ºC 1330 ºC 0.53g/cm3 98 ºC 892 ºC 0.97g/cm3 766 ºC 0.86g/cm3 2.1 Na 2.8.1 K 63 ºC 11/20/13 2.8.8.1 19