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zubareva45

4.

A -АЗОТ   ₊₇N 1s²2s²2p⁵

B - АРГОН ₊₁₈Ar1s²2s²2p⁶3s²3p⁶

C - КИСЛОРОД ₊₈O1s²2s²2p⁴

D- НАТРИЙ ₊₁₁Na1s²2s²2p⁶3s¹

E- КАЛЬЦИЙ ₊₂₀Ca1s²2s²2p⁶3s²3p⁶4s²


5.

а)

б)

1) A

2) B

3) C

4) E

5) E

6) D


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