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Halogens are group 17 elements. They have 7 valence electrons.
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Related Questions
How many valence electrons does an atom of any halogen have?
A halogen is located in group 17 of the periodic table, so the electron configuration for the valance electron would be ns2np5 (n=energy level). So all halogens have 7 valance electrons.
How many valance electrons in Co?
There are 27 valance electrons.
How many valance electrons does samarium have?
2 valance electrons
How many valance electrons are in iodine?
Iodine has 7 valance electrons
How many elements within a row different?
They have different numbers of valance electrons
How many valance electrons does selenium have?
6 valence electrons
How many valance electrons oxygen have?
6 valence electrons
How many valance electrons are in mercury?
there are six
How many valance electrons does Barium have?
Two.
How many valance electrons are in sodium?
none
How many valance electrons does strontium have?
2
How many valance electrons are in lithium?
3
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