Question

an element x belongs to alkali metal family of modern periodic table the number of electrons in the outermost shell is?​

Answer 1

Answer:

ya this one is write

Explanation:

ya this write

Answer 2

Answer:

Since the outermost shell has 7 electrons in its outermost shell means that it requires one more electron to acquire noble gas configuration. So, the valency of X is 1.

explanation:

(i) Since element X' belongs to 3rd period, it means that the element X has three shells. Also, it belongs to group 17 which means that it has 7 valence electrons as valence electrons =17−10=7. So, the electronic configuration of the element X is 2, 8, 7.