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The electronic configuration of four elements are given in brackets:
L (1s2, 2s2, 2p1, ) M (1s1, 2s2, 2p5)
Q (1s2, 2s2, 2p6 3s1,) R ( 1s1, 2s2, 2p2)
The element that would most readily form a diatomic molecule is:
(1) Q
(2) M
(3) R
(4) L
Ans: M
For ns orbital, the magnetic quantum number has value: (1) 2 (2) 4 (3) - 1 (4) 0 Ans:0
Just like lithium and beryllium in Groups Land 2, boron also shows anomalous behaviour. In general, the boron chemistry resembles that of silicon (occupying a diagonal position in
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Q. Define Food spoilage? Food spoilage is a major concern of all people. Spoilage by growth of bacteria, yeasts and moulds limits the time that the food can be stored and still
transition elements form coloured compound. Why?
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