Chemistry, 05.07.2019 04:30 xojade

What would be the effect on the nucleus of an atom if it emitted one alpha and then one beta particle?
a decrease of two in atomic number and a decrease of four in mass number
a decrease of one in atomic number and a decrease of four in mass number
a decrease of one in atomic number and an increase of one in mass number
an increase of one in atomic number and a decrease of two in mass number

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