I
e) n=4,1=3
d) n=4,1=4
16. Electronic configuration of H is
a) Isº
b) is!
1s2
d) 1s 2s
17. Number of protons, neutrons and electrons in th
element? Na is
a) 11,23, 11
b) 11, 11,23
M11, 12, 11
d) 11, 11, 11
18. The number of electrons in 40 Ch?
20
Answers
Answered by
0
Answer:
(c) 11, 12, 11
Explanation:
no. of e = no. of proton =11
no. of n = 12
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