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Helium
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∙ 12y ago
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A noble gas with two electrons?
helium
How do atoms achieve noble gas electron configurations in single covalent bonds?
They achieve noble gas configuration by the sharing of electrons.
How many electrons will a calcium atom Ca lose in order to get a noble gas configuration?
Calcium will lose two electrons to gain the noble gas configuration of Argon.
Which atom has two more electrons than an atom of a noble gas?
The Alkaline Earth metal which comes just after the noble gas
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.
What must oxygen do to electrons to attain noble gas status?
it must gain (or share) two electrons
How many electrons does barium has to give up to achieve a noble gas electron configuration?
Two electrons.
Do all noble gases have eight valence electrons?
Yes, except for helium which only two electrons. All noble gases are found under the noble gas family to the far right of the periodic table.
Is a helium a noble gas?
Yes helium is a noble gas because it is very stable, colorless, odorless taste less, but unlike the other noble gases, it has two electrons in its valence shell.
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 be gained or lost for Mg to attain a noble-gas?
For Mg to attain a pseud noble gas formation it must lose two electrons, becoming the ion Mg2+.
How many electrons must Se gain to acquire noble gas arrangement?
Se has to gain two electrons
