The mass number of iodine is 126, and it’s in the 53rd place in the periodic table. It has protons and neutrons.
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Answer:
proton is 53
neutron is 74
Explanation:
mass number = no of proton + no of neutron
mass no- no of proton = no of neutron
atomic number = no of proton
so therefore;
mass no=126
no of proton =53
then;
126- 53=74
no of neutron is 74
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