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The metals of group 2: Be, Mg, Ca, Sr, Ba, Ra Transition elements * Elements in groups 3 to 11 or 3 to 12 (the latter making up the d-block) Pnictogens: The elements of group 15: N, P, As, Sb, Bi † Chalcogens: The elements of group 16: O, S, Se, Te, Po † Halogens: The elements of group 17: F, Cl, Br, I, At † Noble gases
The AIEEE was introduced in 2002, since the newly established NITs, IIITs and GFTIs wanted an entrance examination paper of a higher standard than the Common Engineering Test (CET), which was formerly used for admission to all non-IIT engineering colleges and some state government colleges also in few states, including even RECs and IIITs, owing mostly to the rising competition and the goal of ...
In 2021, 2022, and 2023, it was conducted by IIT Kharagpur, IIT Bombay and IIT Guwahati respectively. The top 250,000 students of JEE Main qualify to appear for the JEE-Advanced examination. In 2018, 224,000 students appeared to take the JEE-Advanced, [9] a number that had gone up from 220,000 in 2017 and 200,000 in 2016. [10]
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
In 2008, the Indian Institutes of Technology began offering their admission tests in Dubai. [17] Annually, the number of candidates for the examination in Dubai varies between 200 and 220. [18] In 2013, the AIEEE was renamed JEE-Main, and IIT-JEE was renamed JEE-Advanced; the JEE-Main had become the screening exam for JEE-Advanced.
Group 1 element; Group 2 element; Group 3 element; Group 4 element; Group 5 element; Group 6 element; Group 7 element; Group 8 element; Group 9 element; Group 10 element; Group 11 element; Group 12 element; Group 13 element; Group 14 element; Group 15 element; Group 16 element; Group 17 element; Group 18 element
Hydrogen readily loses and gains an electron, and so behaves chemically as both a group 1 and a group 17 element. Hydrogen (H) is the most abundant of the chemical elements, constituting roughly 75% of the universe's elemental mass. [1] Ionized hydrogen is just a proton. Stars in the main sequence are mainly composed of hydrogen in its plasma ...
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...