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gladu [14]
3 years ago
6

Classical name for chromium(III) phosphate

Chemistry
1 answer:
prohojiy [21]3 years ago
8 0
If by classical you mean formula name it is CrPO4<span>.</span>
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Cobalt, Co, has 27 electrons. Write out the entire electron configuration for cobalt using spdf notation.
Hatshy [7]

Answer:

Co = 1s2 2s2 2p6 3s2 3p6 4s2 3d7

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Number of electrons = 27

The closest noble gas before cobalt is Argon and argon has 18 electrons.

Co = [Ar]  ; Remains 27 - 18 = 9  more electrons to fill.

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We have;

Co = [Ar] 4s2; Remains 27 - 20 = 7 more electrons to fill.

The next orbital in order of increasing energy is the 3d orbital. It can have a maximum of 10 electrons.

So we have;

Co = [Ar] 4s2 3d7

The electronic configuration of Ar = 1s2 2s2 2p6 3s2 3p6

This means the entire configuration of cobalt is;

Co = 1s2 2s2 2p6 3s2 3p6 4s2 3d7

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