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What is the total number of valence electrons in an atom with the electron configuration 2-8-1 ? A) 1 B) 2 C) 8 D) 11
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What is the total number of valence electrons in an atom with the electron configuration 2-8-1 ?

A) 1
B) 2
C) 8
D) 11

User Unxnut
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2 Answers

3 votes

Answer: A)1

Step-by-step explanation:

Valence electrons are always in Thebes last shell and last number of the configuration.

User Vivendi
by
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4 votes

Answer:

1 because the last one is 1 and the previous shell was complete.

User Acgtyrant
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