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Question

Atom A has a mass number 209 and atomic number 82.

Atom B has a mass number 209 and atomic number 83.

(i) How many protons atom A has ?

(ii) How many protons atom B has ?

(iii) Are atoms A and B isotopes of the same element ?


Solution

Atom A – A82209
Atom B – A83209

(i) A has 82 protons as the atomic number is 82.
(ii) B has 83 protons as the atomic number is 83.
(iii) No, A and B are not isotopes of each other because their atomic numbers are not same.

Science
Lakhmir Chemistry (2020, 2021)
All

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