Question

Va rog mult ajutatima dau 40 de puncte !!! Imi trebuie sa scriu la tema structura atomilor la 20 de elemente chimice .Va rog ajutatima eu n-am fost la scoala si n-am inteles din spusele colegilor ce avem. (

Answer 1

z=1 H
1s1 un singur electron
z=2 He
1s2 are doi electroni
z=6 C
1s2; 2s2, 2p2 are 6 electroni
z=8
1s2; 2s2, 2p4 are 8 electroni
z=13 Al
1s2; 2s2, 2p6; 3s1 are 13 electroni
z=17 Cl
1s2; 2s2, 2p6; 3s2, 3p5 are 17 electroni
z=10 Ne
1s2; 2s2, 2p6; are 10 electroni
z=20 Ca
1s2; 2s2, 2p6; 3s2,3p6; 4s2 are 20 de elctroni
z=3 Li
1s2; 2s1 are 3 electroni
z=16 S
1s2; 2s2, 2p6; 3s2, 3p4 are 16 electroni
z=12 Mg
1s2; 2s2, 2p6; 3s2 are 12 electroni
z=9 F
1s2; 2s2, 2p5 are 9 electroni
z=5 B
1s2; 2s2, 2p1 are 5 electroni
z=11 Na
1s2; 2s2,2p6; 3s1 are 11 electroni
z=15 P
1s2; 2s2, 2p6; 3s2,3p3 are 15 electroni
z=19K
1s2; 2s2, 2p6; 3s2, 3p6; 4s1 are 19 electroni