Mathematics, 15.10.2019 23:30 daisyperez1
An atom has the following electron configuration.
1s22s22p63s23p64s23d3
how many valence electrons does this atom have?
a. 2
b. 3
c. 5
d. 11
Answers: 3
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An atom has the following electron configuration.
1s22s22p63s23p64s23d3
how...
1s22s22p63s23p64s23d3
how...
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