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Chemistry GK · Q155

Periodic Classification of elements

Competitive Exams · Chemistry GK · question 155

Q155

The first element of each period has 1 valence electron and the last element of each period . . . . . . . . have electrons. (Except helium)

A.
2 valence electrons
B.
8 valence electrons
Answer
C.
4 valence electrons
D.
6 valence electrons

Answer: Option B

Solution

Answer: Option B
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