shalenn15 shalenn15

10-03-2016
Chemistry

Answered

Which substances have one neutron? Select all that apply.

AH-1
BH-2
CH-3
DHe-2
EHe-3

F. He-4

help lol

Verified Answer :

17-05-2019

Answer: Option B and E

Explanation: No of neutrons (n) = Mass number - Atomic number= A-Z

A. n=1-1=0

B. n=2-1=1

C. n= 3-1=2

D. n= 2-2=0

E. n=3-2=1

F. n=4-2=2

Hence options B and E are correct

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