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18 electrons

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16 electrons need how many shells?

16 electrons would fill up the first four shells in an atom: 2 electrons in the first shell, 8 electrons in the second shell, 4 electrons in the third shell, and 2 electrons in the fourth shell.


How many electrons does sulfur have in its third electron shell?

Sulfur has six electrons in its third electron shell.


How many electrons are required to fill the first shell?

The number of electrons in a shell is 2n2, where n=shell number. So for the first shell, there is a maximum of 2 electrons.


How many electrons would be needed to fill its outer shell for carbon?

4 to fill the 2p shell


How many electrons are needed to fill carbon outer shell?

Carbon has four valence electrons, so it will need four more electrons to fill its outer shell.


How many electrons are needed to fill the first three electron shells?

The first electron shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, and the third shell can hold up to 18 electrons. Therefore, a total of 28 electrons are needed to fill the first three electron shells.


How many number of electrons to fill the outer shell of carbon?

Carbon has four valence electrons, so it will need four more electrons to fill its outer shell.


How many electrons are needed to fill up carbons outer shell?

Carbon needs 4 electrons to fill up its outer shell. It has 4 valence electrons and can achieve a full octet by gaining 4 more electrons.


In a Bohr-Rutherford diagram of a silicon atom how many electrons fill each electron shell?

well the first shell can only contain 2 electrons then in the second shell and up you can have up to eight that is how it goes


How many electrons to fill outer shell does sulfur have?

In case of sulphur there are 3 energy levels.The first one contains 2 electrons,the second one contains 8 electrons and the third one contains 6 electrons.So the atomic number is 16 and valence electron/number of electrons in the outermost shell is 6.


How many electrons can fit in the third shell of an atom?

The third shell of an atom can hold a maximum of 18 electrons. The first shell can hold up to 2 electrons, the second shell up to 8 electrons, and the third shell up to 18 electrons based on the formula 2n^2, where n is the shell number.


How many electrons fill the second ring of neon?

There 8 electrons in the second shell.