Răspuns:
H / Z=1/ 1s1/ per1, grI-completeaza tu din tabel/1s1/ 0/ 1/s/ 1
He/ Z=2/ 1s2/......... 1s2/ 1/ 1/ s/0 -
Li / Z=3/ 1s2 2s1....1s2 2s1/ 1 /2 /s/ 1
Be / Z= 4/ 1s2 2s2......1s2 2s2/2 / 2/ s /0/
B / Z=5/ 1s2 2s2 2p1.........2 /2/ p/ 1
C / Z=6 / 1s2 2s2 2p1 2p1......2 /2/p/2
N / Z=7/ 1s2 2s2 2p1 2p1 2p1.....2/ 5/ p/3
O / Z=8/ 1S2 2s2 2p22p12p1....2/ 5/p/2
F / Z=9/ 1s2 2s2 2p2 2p2 2p1......2 / 5/ p/1
Ne/ Z=10 1s2 2s2 2p2 2p2 2p2......3/ 5/ p/ 0
Explicație:
