20. Give reasons
(a) Physical properties of isotopes are different
(b) Argon does not react.
(c) Actual atomic mass is greater than mass number.
d35 /17C1 and 37/17 Cl do not differ in their chemical reactions.
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physical properties of isotopes are different
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a) bcoz of their molar mass
b) bcoz its octet is fulfill
c) what u mean by mass number?
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