Sagot :
number of electron proton neutron
Zn. 30 30 35
kr 36. 36 48
Ba 56 56 81
electron configuration
Ge [Ar] 3d¹⁰ 4s² 4p2
Ba [xe] 6s2
Kr [Ar] 3d¹⁰ 4s² 4p⁶
Zn [Ar] 3d¹⁰ 4s²
number of electron proton neutron
Zn. 30 30 35
kr 36. 36 48
Ba 56 56 81
electron configuration
Ge [Ar] 3d¹⁰ 4s² 4p2
Ba [xe] 6s2
Kr [Ar] 3d¹⁰ 4s² 4p⁶
Zn [Ar] 3d¹⁰ 4s²