20. How many neutrons 19F9, -
(A) 9
(B) 19
(C) 10
(D) 28
Answers
Answered by
0
Answer:
10 neutrons but u question is wrong
question is 9F19
Answered by
0
Answer:
(c) 10 is the answer
Explanation:
19 is the mass number and 9 is the atomic number
Neutrons = mass number - atomic number
= 19 - 9
= 10
#answerwithquality
#BAL
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