February 2023 1 1 Report
jika unsur Ni memiliki nomor atom 28 dan nomor massa 59, ion Ni^+2 memiliki jumlah proton, elektron, dan neutron berturut-turut adalah....

a. 30, 28, 31
b. 28, 26, 59
c. 28, 26, 31
d. 26, 28, 59

beserta langkah kerjanya ya.. :)​

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