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Alexxx [7]
2 years ago
15

WILL GIVE BRAINLIEST AND 40 POINTS!

Chemistry
2 answers:
Alex Ar [27]2 years ago
7 0

Answer:

Do you maybe have  a picture?

Explanation:

katrin [286]2 years ago
4 0

answer -1 If you want an electron configuration just in shells, then you can use the rules that shells fill from the nearest to the nucleus (n=1) out wards, and that the first shell can hold up to 2 electrons, then subsequent shells hold up to 8 electrons. this works up to calcium (20 electrons), after which we start to see additional filling of the inner shell and it gets a bit more complicated. So, if we use these rules for phosphorus, which has 15 electrons, then we get an electron configuration of [2,8,5].

If we need subshell notation, then we use the filling order for the subshells in order of increasing energy of the subshell:

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