It has two valance electrons. Abbreviated electron configuration.
[Ar] 3d^10 4s^2
( energy wise that would be 4s^2 3d^10 )
[Ar] 3d10 4s2 4p2
To achieve noble gas configuration, Bromine must gain one electron. In doing so, it obtains the electron configuration of Krypton. It's new complete electron configuration would be: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6.
The electron configuration of germanium is [Ar]3d10 4s2 4p2.
The electronic configuration of Ga is 1s22s22p63s23p64s23104p1 Expressed as a noble gas configuration this is [Ar] 4s2, 3d10, 4p1
[Ar] 4s2 3d10 4p3
[Ar] 4s2 3d10 4p3
[Ar] 3d10 4s2 4p2
Noble Gas Notation: [Ar] 3d10 4s2 Electron Configuration: 1s2, 2s22p6, 3s23p6, 4s23d10 Electron Arrangement in Shell: 2, 8, 18, 2
K+And the K ion configuration is 1s2 2s2 2p6 3s2 3p6Noble gases have the configuration up to 3p6Pseudo noble gases have it up to 3d10
The Noble gas notation for Krypton can be written as [Kr] because it is a Noble gas or [Ar]4s2 3d10 4p6.
To achieve noble gas configuration, Bromine must gain one electron. In doing so, it obtains the electron configuration of Krypton. It's new complete electron configuration would be: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6.
one electronthe configuration of silver is1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1you take away one electron and the configuration is1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d101 electron
The electron configuration of germanium is [Ar]3d10 4s2 4p2.
[Ar]4s1 3d10
The electronic configuration of Ga is 1s22s22p63s23p64s23104p1 Expressed as a noble gas configuration this is [Ar] 4s2, 3d10, 4p1
[Ar] 4s2 3d10 4p3
To achieve noble gas configuration, Bromine must gain one electron. In doing so, it obtains the electron configuration of Krypton. Its new complete electron configuration would be: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6.http://wiki.answers.com/How_many_electrons_does_BR_need_to_achieve_noble_gas#ixzz19YDVJEtp