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Two electrons.

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Q: How many electrons does barium has to give up to achieve a noble gas electron configuration?
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How many electron does barium have to give up to achieve a noble gas electron configuration?

Two electrons


How many electrons does barium have to give up in order to achieve a noble gas electron configuration?

2 electrons as barium has 56 electrons so it will lose two electrons to reach the electronic structure of the nearest noble gas which is xenon 54 electrons


How many electrons must a barium atom lose to form an ion with noble-gas configuration?

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.


What is the number of outer rings dose barium has?

The electron configuration of barium is [Xe]6s2.Barium has six electron shells with 2, 8, 18, 18, 8, 2 electrons.


How many electrons does barium have to give up achieve a noble gas electronic configuration?

2


Why does barium form an ion with a charge of 2 plus?

Because by losing two electrons from the neutral atoms, a barium ion acquires a noble gas electron configuration.


How many electrons does a barium ion have?

Barium's atomic number is 56. Thus, barium has 56 protons and 56 electrons. Its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2. So, barium has 2 electrons in its highest energy level, level 6.


What is the electron configuration for Barium plus 2?

[Kr]4d105s25p6


What noble gas has the same electron configuration as Ba?

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).


Which element is a metal with an outermost electron configuration of 6s2?

Barium (56)


How many valence electrons does barium have?

There are 2 valence electrons in Barium.


How many electons does barium have to give up to achieve a noble -gas electron configuration?

Two, as indicated by its presence in column 2 (or IIA) of a periodic table.