ricardoalfred66 ricardoalfred66

02-01-2016
Chemistry

contestada

Which notation represents an atom of sodium with an atomic number of 11 and a mass number of 24?

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Billymkhoi Billymkhoi

02-01-2016

Z, the lower number, is the atomic number. Therefore, Z=11.

A, the upper number, is the mass number. Therefore, A= 24.

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