sasatter5222 sasatter5222

20-10-2017
Physics

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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

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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