number of electrons,protons and neutrons in chemical species A,B,C and D is given Below
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a. A=7, B=17
b. B=9
c. C and D are isotopes because their atomic no. is same
b. B=9
c. C and D are isotopes because their atomic no. is same
sravan6:
i don't think c nd d are not isotopes
Ohhhhh sorry..... i confused...
i think about mass number of c nd d
its ok
Kk..
Answered by
15
A has mass 7u
B has mass 17u
atomic no of B is 9
the two isotopes are C and D
B has mass 17u
atomic no of B is 9
the two isotopes are C and D
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