[Kr]4d105s25p6
The electron configuration of barium is [Xe]6s2.Barium has six electron shells with 2, 8, 18, 18, 8, 2 electrons.
[Xe]6s^2
The element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 is Bromine
The electronic configuration of tin is: [Kr]D10.5s2.5p2.The electronic configuration of chromium(2+) is correct.
Two, as indicated by its presence in column 2 (or IIA) of a periodic table.
Because by losing two electrons from the neutral atoms, a barium ion acquires a noble gas electron configuration.
The electron configuration of barium is [Xe]6s2.Barium has six electron shells with 2, 8, 18, 18, 8, 2 electrons.
Two electrons
[Xe]6s^2
Cobalt electron configuration is [Ar]3d7.4s2.Cobalt(2+) electron configuration is [Ar]3d7.
Cobalt(II) electron configuration is [Ar]3d7.
barium has a 2+ chage so u would add 2 electron to take away that chage. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6
Two electrons are donated by Barium to an oxidant (nonmetal, eg. O2) by which barium gets oxidised.Ba --> Ba2+ + 2e-This is because Ba is in group 2 of the periodic system, belonging to the 'earth alkali' metals and so it has 2 electrons (2e-) in its valency (or outer) shell (2,8,18,18,8,2). Hence Ba2+ configuration is (2,8,18,18,8,-), with an empty (-) 6th shell (the 'P' shell) like Xenon.
The electron configuration of copper(II) is [Ar] 3d9 . Copper is [Ar] 3d10 4s1
The element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 is Bromine
The electronic configuration of tin is: [Kr]D10.5s2.5p2.The electronic configuration of chromium(2+) is correct.
Two, as indicated by its presence in column 2 (or IIA) of a periodic table.