pls answer fasttt i have exam tmrW
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Answered by
2
Answer:
A. 12,12,12
B.4,4,5
C. 19,19,20
D 14,14,14
Answered by
8
Answer:
1) For Mg
No. of electrons = 12
No. of neutrons = 24-12 = 12
2) For Be
No. of electrons. = 4
No.of neutrons = 9 - 4 = 5
3) For K
No. of electrons = 19
No. of neutrons = 39 - 19 = 20
4) For Si
No. of electrons = 14
No. of neutrons = 28 - 14 =14
NOTE:
Number of PROTONS is equal to
Number of ELECTRONS !!!!!!!!
Hope it helps!!!
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