answersLogoWhite

0


Best Answer

Calcium must lose 2 electrons and will become Ca2+. It will then have the electron configuration of Argon, a noble gas.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many electrons must be lost Ca to attains a noble gas electron?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

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

two electrons lost


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.


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

It must gain one electron to achieve a noble gas electronic structure, just like other halogens.


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

Ca needs to lose 2 electrons to become Ca+2


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

It gains two to look like Ar.


What is the number of electrons that must be lost in li on the periodic table?

Lithium (Li) should lose 1 electron to get the configuration of the nearest noble gas (He).


Uranium IV ion noble gas diagram?

Probably you want the electron cofiguration of uranium: [Rn]5f36d17s2 The ion U4+ lost four electrons.


What is the noble gas electron configuration of Ca2 plus?

calcium is normally [Ar] 4s2 if it is a 2+ ion, then it has lost 2 electrons so the configuration is just [Ar]


What is the noble gas electron configuration of Ga with a positive 3?

Gallium's atomic number is 31 and has a positive 3 charge which means it has lost 3 electrons to form an ion Ga3+. it has 28 electrons Hope this helps


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.


What do you call an element that has lost an electron?

Elements that have gained or lost an electrons are called IONS. Ones that gained electrons (non-metals) and are therefore negatively charged, and known as ANIONS, and those that lost electrons (metals), are positively charged and known as CATIONS


What do the Group IA atoms have to do to become a noble gas configuration?

They have one valence electron. If this electron is lost, the atoms form cations with the electronic configuration of the nearest noble gas.