electron configuration?

Mg2+, K+, Al3+, Tl+, As3+

i need help!

2007-05-23 07:10:19 · 1 answers · asked by smile 1 in Science & Mathematics ➔ Chemistry

1 answers

Mg2+ = 1s2 2s2 2p6

K+ = 1s2 2s2 2p6 3s2 3p6

Al3+ = 1s2 2s2 2p6

Tl+=1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10

As3+ = 1s2 2s2 2p6 3s2 3p6 4s2 3d10

2007-05-23 07:21:29 · answer #1 · answered by hcbiochem 7 · 10⤊ 0⤋

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