Why the name transition elements for the ‘d block’ elements?
Yevkkaar, let us try to know briefly about Transition Elements,
Transition Elements is a common name given for the ‘d block’ elements. They are placed in a periodic table in between ‘s and p block’ elements, hence this term transition element is given to them. Their general electronic configuration can be represented as
ns1-2, (n-1)d1-10
The properties of transition elements are also transitional between highly reactive metals of ‘s block’ elements, which are typically ionic, and the elements of ‘p block’ which are largely covalent.
Four series of elements are formed by filling the 3d, 4d, 5d and 6d shells of electrons, often called as the first, second, third and fourth row of transition series, respectively. However, in the standard books, only up to 5d series is mentioned. And together they are called transition or d block elements.
The lanthanides and actinides are often called inner transition elements as they are also placed in between this d block.
How long could one survive in a perfectly airtight room.docxMithil Fal Desai
How long could one survive in a perfectly airtight room?
Given
Inhaled air contains 21% oxygen while exhaled breath contains approximately 16% oxygen and 5% carbon dioxide
The minimum oxygen level required for survival is 19 %.
Dimensions of room in meters: 5 X 5 X 3
How long could one survive in a perfectly airtight room.docxMithil Fal Desai
How long could one survive in a perfectly airtight room?
Given
Inhaled air contains 21% oxygen while exhaled breath contains approximately 16% oxygen and 5% carbon dioxide
The minimum oxygen level required for survival is 19 %.
Dimensions of room in meters: 5 X 5 X 3
The acidity of water is a measure of the quantitative capacity to react with a mineral base. The measured value usually varies with the pH indicator used in the experiment. The solution of phenolphthalein is colourless in acidic or mild basic medium (pH<8.0), while in basic medium (pH<9.6) solution is pink. The solution of methyl orange is generally red at pH lower than 3.1 and above pH 4.4 the solutions are yellow.
The dissolved strong mineral acids, weak organic acids, dissolved carbon dioxide and hydrolyzed mineral salts may contribute to the measured acidity of natural water. The acidity of water is a significant parameter of water as the presence of acids in natural water contributes to corrosiveness and influences chemical reaction rates. The biological processes are dependent on the acidity of water. The quantitative acidity measurement also reflects the quality of the source of water. The acidity of water is usually expressed in terms of CaCO3.
Determine the strength in grams per litre of a given AgNO3 solution being pro...Mithil Fal Desai
Mohr’s method is used to determine the chloride ion concentration by titrating with silver nitrate. Using pure sodium chloride the strength of silver ions can be also determined as the Ag(I) ions react with chloride ions, quantitatively, to form a precipitate of silver chloride.
This is a small attempt to preserve heritage and folk culture of Goan village Adnem
Credits to Ghanashyam K. Devidas, Lakshimikant Bhavu, Vithobha Bhavu
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The acidity of water is a measure of the quantitative capacity to react with a mineral base. The measured value usually varies with the pH indicator used in the experiment. The solution of phenolphthalein is colourless in acidic or mild basic medium (pH<8.0), while in basic medium (pH<9.6) solution is pink. The solution of methyl orange is generally red at pH lower than 3.1 and above pH 4.4 the solutions are yellow.
The dissolved strong mineral acids, weak organic acids, dissolved carbon dioxide and hydrolyzed mineral salts may contribute to the measured acidity of natural water. The acidity of water is a significant parameter of water as the presence of acids in natural water contributes to corrosiveness and influences chemical reaction rates. The biological processes are dependent on the acidity of water. The quantitative acidity measurement also reflects the quality of the source of water. The acidity of water is usually expressed in terms of CaCO3.
Determine the strength in grams per litre of a given AgNO3 solution being pro...Mithil Fal Desai
Mohr’s method is used to determine the chloride ion concentration by titrating with silver nitrate. Using pure sodium chloride the strength of silver ions can be also determined as the Ag(I) ions react with chloride ions, quantitatively, to form a precipitate of silver chloride.
This is a small attempt to preserve heritage and folk culture of Goan village Adnem
Credits to Ghanashyam K. Devidas, Lakshimikant Bhavu, Vithobha Bhavu
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
4. Atomic
number
Transition
Element
Symbol State (at Rt) Electronic configuration
21 Scandium Sc Solid [Ar] 3d14s2
22 Titanium Ti Solid [Ar] 3d24s2
23 Vanadium V Solid [Ar] 3d34s2
24 Chromium Cr Solid [Ar] 3d54s1
25 Manganese Mn Solid [Ar] 3d54s2
26 Iron Fe Gas [Ar] 3d64s2
27 Cobalt Co Gas [Ar] 3d74s2
28 Nickel Ni Solid [Ar] 3d84s2
29 Copper Cu Solid [Ar] 3d104s1
30 Zinc Zn Solid [Ar] 3d104s2
First Row Transition Elements
