Answer all plz i will mark a answer as brainliest.......of class 9 chemistry......
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cu 65means 29is atomic number and 65is mass number
Answered by
1
Hey dearie,
here,
a) Element B
b) Element E
c) Element A and D ( becz, isotopes have same proton number and diff neutron number)
Glad to help you!!
here,
a) Element B
b) Element E
c) Element A and D ( becz, isotopes have same proton number and diff neutron number)
Glad to help you!!
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