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OpenStudy (anonymous):
if a atom has an atomic number of 19 then how many protons does it have
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OpenStudy (wolfe8):
Welcome to OpenStdy. Atomic number is proton number.
OpenStudy (anonymous):
do you know how many neutrons it would most likely have?
OpenStudy (wolfe8):
Yup if you know the mass since the mass of an atom is made of the protons and neutrons a.k.a nucleons.
OpenStudy (gudden):
Annabella number of protons in an atom = atomic no so.. what do u say about the answer ;-)
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