Find the orbital notation and electron configuration for each.?

1 ⤊

Find the orbital notation and electron configuration for each.?

1)Calcium
2)Arsenic
3)Fluoride, F^-1
4)Mg^2+

2007-08-23 07:49:01 · 2 answers · asked by Bucky 1 in Science & Mathematics ➔ Chemistry

2 answers

1) 1s2, 2s2,2p6,3s2,3p6,4s2
Ca has 20 electrons
2) 1s2., 2s2,2p6,3s2,3p6, 3d10,4s2,4p3
As has 33 electrons
3) 1s2,2s2, 2p6
F has 9 electrons . F- has 10 electrons
4 ) 1s2, 2s2, 2p6
Mg has 12 electrons. Mg2+ has 10 electrons

2007-08-23 08:08:03 · answer #1 · answered by Dr.A 7 · 0⤊ 0⤋

1) 1s2 2s2 2p6 3s2 3p6 4s2

2) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3

3) 1s2 2s2 2p6 (1 extra in 2p)

4) 1s2 2s2 2p6 (2 less in 3s2)

2007-08-23 15:05:35 · answer #2 · answered by steve_geo1 7 · 1⤊ 0⤋