there are 54 electrons in Ba 2+. as the atomic no. of Ba is 56, so when it loses two of its electrons..
there are 54 electron left..
56-2=54
Your answer is 54.
~JM Chem 130 2012~
Ba has 56 electrons. It gives away two electrons to form this ion. So it has 54 electrons.
Barium atom has 56 protons. Ba+2 has 54 protons in ion.
54 electrons in the ion Ba2+.
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 barium atom loses two electrons
Xe, Ba2+
Ba2+ + CO32- >> BaSO4
How many electrons does Bromine have
56-2=54 Your answer is 54. ~JM Chem 130 2012~
By losing two electrons to form Ba2+ ion.
No, it looses two electron and becomes Ba2+
It becomes a positive ion and its radius decrease
[Xe] Normally the electronic configuration for Barium would be [Xe] 6s2, but since you want it for Ba2+, you're missing two electrons. You get rid of the 6s2 and get [Xe].
Neither..they both have approximately the same weight as electrons are virtually weightless.bt the ba2 plus wud have to combine with another element for charge stability and the compound it forms shud be heavier than ba.
Ba2(SO4)2
exam date seet ba2
This is not an equation but the chemical symbol of the cation: Ba2+.
Ba2+ is the ion of the Ba atom. That means it has given away two electrons to other atoms in order to reach a stable state with 8 electrons in its outer shell.
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.
There is no noble gas with the same electronic configuration as the element barium (Ba). But Ba2+ ion and the noble gas xenon (Xe) will have the same number of electrons (54 electrons each).