Properties of coordination compoundes part 1 of 3Chris Sonntag
Applications of Crystal Field Theory to explain physical properties of coordination compounds, such as color, lattice energy, hydration energy and Spinel types
Properties of coordination compoundes part 1 of 3Chris Sonntag
Applications of Crystal Field Theory to explain physical properties of coordination compounds, such as color, lattice energy, hydration energy and Spinel types
Properties of coordination compounds part 1 (2018)Chris Sonntag
Using the crystal field theory, different properties of transition metal compounds can be explained, such as Ionic radii, hydration and lattice energies and spinel types
Properties of coordination complexes CompleteChris Sonntag
Application of Crystal Field Theory to explain the main physico-chemical properties of Transition Metal Complexes (not organometalic)
In the first part we use this theory to explain several characteristics of coordination complexe.
In this presentation I cover all of the HL content for T13- Periodic trends. As usual I would like to acknowledge the Pearson textbook as the main source of my inspiration.
Worksheet for practicing working out empirical formulae. Pupils will need a data sheet or a list of relative atomic masses to be able to complete the questions.
Attacking the TEKS: Focus on Atomic Theory presented by Jane Smith, ACT2 2010
This session will expose you to the new TEKS and College Readiness Standards. Ideas for sequencing and planning the unit will be shared along with tips for appropriate demos, labs, and assessments. The intended audience is for teachers with 3 or less years of experience or anyone who wants to delve deeper into the new standards.
Properties of coordination compounds part 1 (2018)Chris Sonntag
Using the crystal field theory, different properties of transition metal compounds can be explained, such as Ionic radii, hydration and lattice energies and spinel types
Properties of coordination complexes CompleteChris Sonntag
Application of Crystal Field Theory to explain the main physico-chemical properties of Transition Metal Complexes (not organometalic)
In the first part we use this theory to explain several characteristics of coordination complexe.
In this presentation I cover all of the HL content for T13- Periodic trends. As usual I would like to acknowledge the Pearson textbook as the main source of my inspiration.
Worksheet for practicing working out empirical formulae. Pupils will need a data sheet or a list of relative atomic masses to be able to complete the questions.
Attacking the TEKS: Focus on Atomic Theory presented by Jane Smith, ACT2 2010
This session will expose you to the new TEKS and College Readiness Standards. Ideas for sequencing and planning the unit will be shared along with tips for appropriate demos, labs, and assessments. The intended audience is for teachers with 3 or less years of experience or anyone who wants to delve deeper into the new standards.
ATOMIC STRUCTURE
1. ATOM & MOLECULES
(a) The smallest particle of a matter that takes part in a chemical reaction is called an atom. The atom of all gases except those of noble gases, cannot exist in free state. These exist in molecular form. The molecules of hydrogen, nitrogen, oxygen and halogens are diatomic (H2, N2). Phosphorus molecule is tetratomic and that of
sulphur is octa atomic.
(b) The smallest particle of a matter that can exist in free state in nature, is known as a molecule.
(c) Some molecules are composed of homoatomic atom, e.g., H2, O2, N2, Cl2, O3 etc., while the molecules of compounds are made up of two or more heteroatomic atoms e.g., HCl, NaOH, HNO3, CaCO3, etc.
2. DALTON’S ATOMIC THEORY
The concepts put forward by John Dalton regarding the composition of matter are known as Dalton’s atomic theory. Its important points are as follows.
(a) Every matter is composed of very minute particles, called atoms that take part in chemical reactions.
(b) Atoms cannot be further subdivided.
(c) The atoms of different elements differ from each other in their properties and masses, while the atoms of the same element are identical in all respects.
(d) The atoms of different elements can combine in simple ratio to form compounds. The masses of combining elements represent the masses of combining atoms.
(e) Atom can neither be created nor destroyed.
2.1 Modern Concept :
Many of the concepts of Dalton’s atomic theory cannot be explained. Therefore, foundation of modern atomic theory was laid down by the end of nineteenth century. The modern theory is substantiated by the existence of isotopes, radioactive disintegration, etc. The important points of the modern atomic theory are as follows.
(a) Prof. Henri Bacquerel discovered the phenomenon of radioactivity and found that an atom is divisible.
(b) An atom is mainly composed of three fundamental particles, viz. electron, proton and neutron.
(c) Apart from the aforesaid three fundamental particles, many others have also been identified, viz. positron, meson, neutrino, antiproton, etc.
(d) Soddy discovered the existence of isotopes, which were atom of the same element having different masses. For example, protium, deuterium and tritium are atoms of hydrogen having atomic masses 1, 2 and 3 a.m.u. respectively.
(e) Atoms having same mass may have different atomic numbers. These are known as isobars. For example,
40 Ar and 40 Ca .
18 20
(f) Atoms of elements combines to form molecules.
(g) It is not necessary that the atoms should combine in simple ratio for the formation of compounds. The atoms in non-stoichiometric compounds are not present in simple ratio. For example, in ferrous sulphide crystals, iron and sulphur atoms are present in the ratio of 0.86 : 1.00.
(h) Atoms participate in chemical reactions.
3. CATHODE RAYS (DISCOVERY OF ELECTRON)
Dry gases are normally bad conductors of electricity. But under low pressure, i.e., 0.1 mm of mercury or lower, electric current can pass thro
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
Unit Three Review Hon Chem 10 Key
1. Chemistry Unit 3 Review
I. History Atomic Theory: Briefly explain the contributions made by each…
A) Democritus.- Atoms of matter are different sizes and shape.
B) Dalton.- Atoms of different elements are different.
C) Thomson.- Cathod Ray Tube exp. Positive body with negative charge
throughout.
D) Rutherford.- Gold foil experiment, atom is mostly empty space with
dense core.
E) Bohr.- Planetary model.
F) Schrodinger, et al.- Electron cloud model.
II. Subatomic Particles: Complete the following chart.
Atomic Mass Number of Number of Number of
Isotope Name Number Number Protons Neutrons Electrons
Gold – 197 79 197 79 118 79
Arsenic – 74 33 74 33 41 33
Neon - 20 10 20 10 10 10
Iodine - 53 127 53 74 53
Magnesium - 12 28 12 16 12
Tungsten - 184 74 184 74 110 74
Carbon –14 6 14 6 8 6
III. Bohr Models: Draw Bohr models for Neon, Magnesium and Carbon.
Mg
Ne C
10p+ 12p+ 6p+
10n 12n 6n
2. IV. Short Answer:
Name and describe the current model of the atom including the three
subatomic particles that make up an atom, their charges, relative masses
and locations within the atom. Electron cloud model: Electrons are found in a
cloud that surrounds the nucleus.
V. Vocabulary: Define the following terms.
Isotope, Ion, Atomic number, Average atomic mass, Percent Abundance, Mass
number, Electron Configuration, Valence Electrons, Quantum Number, Shells,
Energy Levels, Periods, Groups.
VI. Average Atomic Mass: Calculate the following.
1. The element magnesium consists of three naturally occurring isotopes
with masses 23.98504, 24.98584 and 25.98259 amu. The relative
abundances of these three isotopes are 78.70, 10.13 and 11.17 percent,
respectively. From this data, calculate the average atomic mass of
magnesium.
(23.98504*.7870) + (24.98584*.1013) + (25.98259*.1117) = 24.31
2. Lead has four naturally occurring isotopes.
Pb-204 has a mass of 203.973amu and is 1.48% abundant.
Pb-206 has a mass of 205.9745amu and is 23.6% abundant.
Pb-207 has a mass of 206.9759amu and is 22.6% abundant.
Pb-208 has a mass of 207.9766amu and is 52.3% abundant. Calculate the
average atomic mass of lead.
207.18
VII. Electron Configurations: Write the electron configuration for each of
the following elements.
1) Lithium: 1s² 2s¹
2) Sulfur: 1s² 2s²2p6 3s² 3p4
3) Zinc: (Ar) 4s² 3d10
4) Scandium: (Ar) 4s² 3d¹
5) Potassium: 1s² 2s² 2p6 3s² 3p6 4s¹
3. VIII. Radioactivity- Complete the following problems.
1. After 16.0 days, the quantity of a certain radioisotope is reduced from 55.6
grams to 13.9 grams. Calculate the half-life of the isotope.
a. Half-life= Total Mass/ number of cycles = 16/2 = 8 days
2. The half-life of a certain isotope is 7.90 seconds. Calculate the quantity of
the isotope remaining after 39.5 seconds if the sample originally contained
36.0 grams.
a. Total mass / 2n = remaining mass 36/25
3. The quantity of 14C in a sample of once-living material is found to be 5.70g.
The quantity that was present in the sample when the organism died was
91.2g. How old is the sample? (The half-life of carbon-14 is 5730 years.)
a. 5.7=91.7 / 2 n = 4
n
b. 573011460171902292028650 years old
4. Understand the products and how they are derived of alpha, beta, and
gamma decay. Alpha = Helium Nucleus Beta= electron Gamma = energy
IX. Short Answer
1) Two isotopes of iodine (atomic number 53) are I-127 and I-131. Compare
these two isotopes in terms of:
a. number of protons 53
b. mass number 127,131
c. number of neutrons 74,78
2) What is special about the number of electrons, relative to the number of
protons? Why must this be so?
a. The number of protons and neutrons are equal in a neutral atom.
3) What is the term used to describe the normal energy level an electron
occupies? What does it mean if an electron becomes excited? What
happens to the energy that is given off when an excited electron falls back
to its normal level?
a. Quantum Energy level, the excited state is reached when the
electrons are promoted to a higher orbital through the introduction
of energy.
4. XII. Calculate the percent abundance for each element of the following
compounds.
a. H2O H=11% O=89%
b. NH3 H= 18% N= 82%
c. C6H12O6 C= 37% H=7% O= 56%
d. Ca(OH)2 Ca= 54% O=43% H=3%
