pls answer this correctly...plz i beg u...
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Isotones:
There are elements with the same number of neutrons, but different atomic number(number of protons).
so, the answer is option 2
There are elements with the same number of neutrons, but different atomic number(number of protons).
so, the answer is option 2
siril:
as 16-8 = 17-9
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