Chemistry, asked by nandanadnair1, 5 months ago

an atom has mass number 19 and has 10 neutrons. what is its atomic number.
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Answers

Answered by prithapaul35

1

Answer:

mass =number of proton +number of neutron

19= number of proton+10

number of proton=9

atomic number = number of proton

so atomic number is 9

it means it is fluorine

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