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The principal quantum # of valence e- in an atom of lead is?

a) 4 b) 5 c) 3 d) 2 e) 6

2006-12-10 03:35:10 · 1 answers · asked by BILLY D 1 in Science & Mathematics ➔ Chemistry

1 answers

You will find this by looking at what row (period, series) lead is in on the periodic table.

It is in period 6, so the principle quantum # of the valence e- is 6.

2006-12-10 03:45:17 · answer #1 · answered by physandchemteach 7 · 1⤊ 0⤋

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