3 years ago

What element has 4 valence electrons and 5 electron shells?

Chemistry

1 answer:

marta [7]3 years ago

8 0

Answer: Tin (Sn)

Explanation: The electron configuration for tin (Sn) is shown in the picture. It's last electrons are:

5s^2 4d^10 5p^2

The valence electrons are in the 5th electron shell and include 2 each in the 5s and 5p orbitals.

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