Multiple choice general knowledge science & technology

Number of electrons in outermost shells of alkalis

  1. 0

  2. 3

  3. 2

  4. 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alkali metals (Group 1 elements like Li, Na, K) have one electron in their outermost shell. This single valence electron makes them highly reactive as they readily lose it to form +1 ions.

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