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Chemistry, 23.05.2020 00:00 hmu323

An atom has the following electron configuration.
1s22s22p63s23pⓇ4s23d3
How many valence electrons does this atom have?
A. 2
B. 3
C. 5
D. 11

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An atom has the following electron configuration.
1s22s22p63s23pⓇ4s23d3
How many valence...

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