Chemistry
M is a metal above hydrogen in the activity series and its oxide has the formula M2O. This oxide when dissolved in water forms the corresponding hydroxide which is a good conductor of electricity. In the above context answer the following:
(a) What kind of combination (bond) exists between M and O?
(b) How many electrons are there in the outermost shell of M?
Answer
(a) Electrovalent bond exits between M and O because the bond is formed between a metal and non-metal due to oppositely charged ions.
(b) Number of electrons in the outer most shell of M is 1. It is so because the valency of O is -2 and as 2 atoms of M combine with O to form M2O, hence we can say that M has 1 valence electron.
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