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all the elements in the Periodic Table under the last coloumn, also known as the group 8 elements or noble gases. they each have 8 electrons on their outer shell making them "satisfied".
What else can I help you with?
How many additional valence electrons does fluorine need to have a full valance shell?
1
Why does sulfur have a valency of 4 and 6 when it needs only 2 electrons for stable configuration?
It has 6 electrons in it's valance shell and needs 2 more electrons in it's valance shell to become stable. Some atoms, phosphorous for instance ( valance # 5 ), can reach deeper into their valance shell and make additional covalent bonds.
How many additional valance electrons does fluorine need to have a valance shell?
1
What makes a group not reactive on the periodic table?
A full octet, valance shell. A valance shell with eight electrons, such as the Nobel gases have, doe not need to donate or accept electrons into or out of the valance shell to be stable.
Outer shell electrons are known as?
Valance electrons
What has 5 electrons in its outer shell?
If you are talking about the valance electrons any elements in group 5 on the periodic table will have 5 valance electrons.
How many electrons are in the valence shell of He?
There are two electrons in the valance shell of helium. Since this is the first shell, it is filled by two electrons.
Complete valance shell holds electrons?
8
How many electrons does the valance shell in hydrogen have?
1
Do ions have an unusual number of electrons?
Cations donate electrons from their valance shell, have less, to reach their octet state. Anions accept electrons into their valance shell, have more, to reach their octet state.
The electrons found in an atoms outeer shell are often called electrons?
Valance electrons.
How many valance electrons in neon?
Eight - it has a full outer shell of electrons.
