Question

Lithium, sodium and potassium are very reactive metals found in Group 1 on the..

Periodic Table. Which of the following facts about this group of elements is related
to its chemical reactivity?
A Neutral atoms of group 1 elements do not have a charge.
B The Alkali Metals contain neutrons in the nucleus.
C The atoms of group 1 elements have one valence electron.
D Group 1 contains more elements than most other groups.

Answer 1

The answer is C because in group 1 they only have one valence electron

Answer 2

Answer is C

Explanation:

This is because Lithium =2.8.1

Sodium=2.8.8.1

Valence electron is the electron located in the last shell

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