sasatter5222 sasatter5222
  • 20-10-2017
  • Physics
contestada

An atom of gadolinium has an atomic number of 64 and a mass number of 154. how many electrons, protons, and neutrons does it contain?

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ejelonubenedict
ejelonubenedict ejelonubenedict
  • 23-10-2017
no. of protons = atomic number = 64
no. of neutrons = mass no. - no. of protons= 154 -64 = 90
no. of electrons = no. of protons = 64
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