[WpProQuiz 1384]
[WpProQuiz_toplist 1384]
UPSC 2023 countdown has begun! Get your personal guidance plan now! (Click here)
[WpProQuiz 1384]
[WpProQuiz_toplist 1384]
UPSC 2023 countdown has begun! Get your personal guidance plan now! (Click here)

Also read:
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| Urban-rural manufacturing shift: A mixed bag |

| Description | |
| History | Developed by Dmitri Mendeleev in 1869. He arranged elements based on their atomic masses and predicted the existence of undiscovered elements. |
| Organization | Elements are arranged based on their atomic numbers, electron configurations, and properties. |
| Periods | There are seven periods (rows) in the table, representing different principal energy levels. |
| Groups | The table has 18 groups (columns), with elements in the same group sharing similar properties. |
| Main Groups | Elements in groups 1, 2, and 13 to 18 are referred to as main group elements. |
| Transition Metals | Groups 3 to 12 consist of transition metals, known for their variable oxidation states. |
| Lanthanides | The first row of the f-block contains the 15 lanthanide elements. |
| Actinides | The second row of the f-block contains the 15 actinide elements. |
| Periodic Trends | Various trends exist across the table, such as atomic radius, ionization energy, and electronegativity. |
| Periodic Law | The chemical and physical properties of elements repeat in a periodic manner based on their atomic numbers. |
| Modern Versions | Modern versions incorporate atomic numbers and reflect our understanding of atomic structure. |
| International Union of Pure and Applied Chemistry (IUPAC) | IUPAC is the international organization responsible for the standardization of chemical nomenclature, symbols, and the Periodic Table. |
| Database Management | Several organizations and databases manage and maintain comprehensive information about the elements, their properties, and the Periodic Table. Examples include the IUPAC, the National Institute of Standards and Technology (NIST), and the Royal Society of Chemistry (RSC). |

| Explanation | |
| About | BRICS is a grouping of the world’s leading emerging economies: Brazil, Russia, India, China, and South Africa. |
| History | The term BRIC was coined in 2001 by British Economist Jim O’Neill to describe the four emerging economies of Brazil, Russia, India, and China. The grouping was formalized in 2006, and South Africa joined in 2010. |
| Composition | BRICS comprises the four emerging economies of Brazil, Russia, India, and China, with South Africa joining later. |
| Footprints | BRICS represents 41% of the global population, 24% of global GDP, and 16% of global trade. |
| Chairmanship | Rotates annually among the members, with India holding the chair in 2021. |
| Initiatives |
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Facts for prelims: Semiconductors
|
Also read:
| India’s Push for Semiconductors |
[WpProQuiz 1383]
[WpProQuiz_toplist 1383]
UPSC 2023 countdown has begun! Get your personal guidance plan now! (Click here)

Save your seat for a Clarity with Ranker’s session with AIR 48, Aaditya | We’ll share a personalized PDF study plan and timetable for you.
The UPSC examination landscape is undergoing massive changes. The Prelims held just a day ago has sent shockwaves across the aspirant community, leaving even veteran candidates who have cleared it 3-4 times in a state of bafflement.
Next three months (Jul-Aug) for UPSC 2024 prep cycle are crucial.
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Save your seat for a Clarity with Ranker’s session with AIR 48, Aaditya | We’ll share a personalized PDF study plan and timetable for you.
Date: 1st June 2023 (Thursday)
Time: 7:30 pm Onwards
Zoom Meeting Link will be sent via your registered email address.
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Save your seat for a Clarity with Ranker’s session with AIR 48, Aaditya | We’ll share a personalized PDF study plan and timetable for you.

[Static Revision] National Income Determination, GDP, GNP, NDP, NNP, Personal Income