Ответ:
Si ))) +14
2 8 4
p= 14
n=14
e=14
Ca )))) +20
2 8 8 2
p= 20
n= 20
e= 20
O )) +8
2 6
p= 8
n= 8
e= 8
Fe )))) +26
2 8 14 2
p= 26
n= 30
e= 26
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Ответ:
Si ))) +14
2 8 4
p= 14
n=14
e=14
Ca )))) +20
2 8 8 2
p= 20
n= 20
e= 20
O )) +8
2 6
p= 8
n= 8
e= 8
Fe )))) +26
2 8 14 2
p= 26
n= 30
e= 26