Question

explain electronic config. on 3rd period....?​

Answer 1

Answer:

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In the third period of the table, the atoms all have a neon-like core of 10 electrons, and shell #3 is occupied progressively with eight electrons, starting with the 3s-orbital. The highest occupied electron shell is called the valence shell, and the electrons occupying this shell are called valence electrons.

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Answer 2

Answer:

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