September 2018 2 57 Report
Jumlah neutron dan proton dalam suatu unsur menyatakan..
A.kuliat atom
B. partikel atom
C.nomor atom
D.nomor massa
E.partikel molekul.
atom2 yg mempunyai jumlah proton sama tetapi massa atom berbeda disebut..
A.isobar
B.isotan
C. isotop
D.isomer
E. iso elektron

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