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it must gain (or share) two electrons

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How many electrons must be gained or lost for Mg to attain a noble gas?

It should loose 2 electrons to become a noble gas.


How many electrons must be lost given the following atoms Ca Mg Ba Be to attain Noble gas?

All should lose 2 electrons to attain the nearest noble gas configuration


When an aluminum atom reacts so as to attain a noble gas electron confuration?

aluminium should lose three electrons to attain noble gas configuration


How many electrons must be gained or lost for Mg to attain a noble-gas?

Magnesium (Mg) has 12 electrons. To attain a noble gas configuration, Mg would need to lose 2 electrons to have the same electron configuration as a noble gas (like neon). This would result in Mg forming a +2 ion.


How do you get a noble gas configuration?

Atoms lose or gain or share electrons and tend to attain noble gas configuration


How many electrons must Kr lose to attain a noble gas electron configuration?

Krypton is a noble gas and need not lose electrons. It is already stable.


What is the different ways in which atoms try to attain the electronic configuration of noble gasses with an example?

Metals like sodium,potassium get noble gas configuration by losing electrons. Elements like nitrogen,oxygen get noble gas configuration by gaining electrons. Halogens get noble gas configuration by sharing electrons.


How many valence electron does Ca lose or gain to attain noble-gas electron configuration?

Calcium loses two electrons to obtain a noble-gas electron configuration.


How many atoms does a phoshorus atom need to attain a noble gas configuration?

Phosphorus should gain 3 electrons and form P3- ion to attain a noble gas configuration


To attain a noble gas electron structure a nitrogen atom must lose five valence electrons?

To attain a noble gas electron structure, a nitrogen atom must gain three electrons, not lose five. Nitrogen is in group 15, so it has five valence electrons. By gaining three electrons, it can achieve a stable octet like the noble gas neon.


How many electrons does nitrogen give up to achieve noble gas electron configuration?

nitrogen should give 5 electrons (or better gain 3 electrons) to attain noble gas configuration.


Does oxygen react with noble gases?

No! oxygen does not react with a noble gas because a noble gas does not want any electrons. This means, it's outer shell or valence shell is filled with electrons.