Question

No of electron in Rb+2

Answer 1

Rubidium is an alkali metal

Protons: 37

Neutrons in most abundant isotope: 48

Electron shells: 2,8,18,8,1

Electron configuration: [Kr] 5s1

Rubidium has a total of 37 electrons, illustrated in the element's electron configuration of 1s2 2s2p6 3s2p6d10 4s2p6 5s1.

I hope it will helps you friend

Answer 2

$There \: \: are \: \: 37 \: \: electron \: \: ( - ve) \: \: \& \: \: proton \: \: (+ve) \: \: in \: \: {Rb}^{ + 2}$