The chemical properties of isotopes are same due to same number of ………..
a) electrons
b) neutrons
c) protons
d) all of these.
The number of isotopes of carbon are……..
a) one
b) two
c) three
d) four
All the isotopes of carbon have …… protons in their nuclei.
a) 6
b) 8
c) 7
d) 9
C-12 has neutrons in its nuclei.
a) 6
b) 5
c) 7
d) 8
C-13 has neutrons in its nuclei.
a) 7
b) 8
c) 6
d) 6
C-14 has neutrons in its nuclei.
a) 6
b) 8
c) 7
d) 9
