Question

va roggg repede urgent....​

Answer 1

fiecare sir orizontal are 18 casute-numeroteaza-le!

a.  casuta 26-Fe

b. K2L8--> Z=10--> casuta 10 -Ne.perioada 2 ,gr.VIII

c. S²⁻--->S---> K2 L8 N 6-->perioada 3, gr. VI-->Z=16--> casuta  16

d.Ca²⁺---> Ca --> K2 L8 M8 N2-->perioada 4, gr.II--> Z= 20---> casuta 20

e. P(fosfor)--->Z=15--> casuta 15

f. Al-_ K2L8M3--> per.3 gr.III--> z=13---> casuta 13