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Two electrons

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Americo Powlowski

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2y ago
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Alphonso Nicolas

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2y ago

2 electrons

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8y ago

Ba gains noble gas configuration by losing 2 electrons. It gains the electron configuration of Xe.

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11y ago

Barium has to give up 2 electrons.

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8y ago

6 electrons (not elements)

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12y ago

2

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

Two electrons.


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.


How many electrons does cesium have to give up to achieve a noble gas electron configuration?

Losing an electron cesium has a noble gas configuration.


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


What electron configuration do atoms acheieve by sharing electrons form covalent bonds?

They achieve the electron configuration of a noble gas.


How could iodine atoms react to achieve a noble gas configuration?

Iodine accepts one electron to achieve noble gas configuration. Strontium loses two electrons to achieve noble gas configuration. Nitrogen accepts three electrons to achieve noble gas configuration. Krypton already has a noble gas configuration.


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.


How many electrons must be gained or lost for selenium to achieve a noble gas electron configuration?

Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.


State the importance of the noble-gas electron configuration in the formation of ions?

Chemical properties depend on electron configuration. By either gaining or losing electrons, an atom changes its electron configuration and therefore its chemical properties also change.The atoms of an element will react to achieve a noble-gas configuration. The atoms will either gain or lose electrons to achieve such a configuration.


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 chlorine gain to make a noble gas?

Chlorine gains 1 electron to achieve the noble gas electron configuration of argon.


How many electron does potassium have to gain or loose in order to achieve a noble gas electron configuration?

It must lose 1 electron