The element with a valence electron configuration of 3s2J is in group and period

Question

The element with a valence electron configuration of 3s2J is in group and period . The clement with a value electron configuration of 2s2 2p2 is in group and period . The electron configuration for aluminum is 1s2 2s2 2p6 3s23p1 and should be entered as 1s2 2s2 2p6 3s2 3p1. What is the valence collection configuration for the atom? What is the valence collection configuration for the fluorine atom? What is the name: of the element with a valance electron configuration of 4s2 4p1? What is the name of the element with a value electron configuration of2s2 2p4?

Explanation / Answer

1) Mg period = 3 , group =2

2) C period = 2 , group = 4

1) nitrogen - 2S2 2P3

2) fluorine - 2S2 2P5

1) gallium

2) oxygen

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