Question

H, Li, Na, K placed in group. Why?​

Answer 1

Explanation:

• Li, Na and K all ended up in the Alkali Metals group because of this pattern that grouped similar elements. They have similar chemical properties because they all have one valence electron which they lose easily to form a +1 ion. They all react vigorously with water to form hydrogen gas and hydroxide ion.

Answer 2

Explanation:

Li, Na and K all ended up in the Alkali Metals group because of this pattern that grouped similar elements. They have similar chemical properties because they all have one valence electron which they lose easily to form a +1 ion. They all react vigorously with water to form hydrogen gas and hydroxide ion.