an atom x has a proton number 19 and relative atomic mass of 39. a. how many electrons, protons and neutrons are there in atom x brainly
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Answered by
7
Answer:
electron 19
proton 19
Neutron 20
Answered by
2
Answer:
no of protons is 19
no of electrons is 19
no of neutrons is 20
Explanation:
atomic mass is sum of number of electrons and protons.
since it's an atom with no net charge, number of protons and electrons is same.
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