1. Electronic configurations of four elements are given below: (a) 1s2 2s1 (b) 1s2 2s2 2p5 (c) 1s2 2s2 2p5 3s2 (d) 1s2 Justify that above examples are from following groups of elements: i) An alkali metal ii) An alkaline earth metal iii) A noble gas iv) A halogen
Answers
Answer:
a) is alkali metal
b) is alkali earth metal
c) is a halogen
d) is a nobel gas
Answer:
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Explanation:
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