Question

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:
1) What kind of combination exists between M and O?
2)State the number of electrons in the outermost shells of M?
3)Name the group to which M belongs?​

Answer 1

Answer:This may help you

Explanation:

1)Electrovalent or ionic compound is formed.

2)In the oxide M2O,the valency of Oxygen is (-2) and the valency of M(+1).

Since M is metal then it has 1 electron in the outermost shell.

3)Since M has one electron in outermost shell then,M belong to alkali metal group i.e., group=1