Plz some one solve this one and plz ans it correctly dont write anything rubish.
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Beryllium :
p+ : 5
n : 5
e- : 4
Fluorine :
A : 19
p+ : 10
e- : 9
Sodium :
Z : 11
A : 23
p+ :12 Z = Atomic no.
Aluminum : A = Mass no.
Z : 13
p+ :14
n : 14
Phosphorus :
Z : 16
n : 15
e- : 16
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Be -4 ' 9, 4, 5, 4
F-9, 19, 9, 10, 9
Na- 11 , 23, 11, 12, 11
Al-13, 27, 13, 14, 13
P- 15 ,31, 15, 16, 15
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