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I believe you are talking about fluorine. If you are, F needs one more electron to gain a full shell.
If you go to WikiAnswers for this information, that is counterproductive, because there is a much better way to do it. Look at the Periodic Table. Groups IA through VIIIA tell you what you need to know. IA has one valence electron, IIA has two valence electrons etc. Fluorine is in group VIIA and therefore has seven valence electrons. All atoms want eight, and thus fluorine is in need of one more.
What else can I help you with?
How many additional valance electrons does fluorine need to have a valance shell?
1
How many electrons does fluorine atom have in its outermost unexcited main energy level?
A fluorine atom has 7 electrons in its outermost unexcited main energy level. This allows fluorine to achieve a full valence shell of 8 electrons by gaining one additional electron through bonding.
How many bonds fluorine can form?
Fluorine can form 1 bond because it has 7 valence electrons and needs only 1 more electron to achieve a full valence shell of 8 electrons.
Does fluorine gain or loose electrons?
Fluorine gains electrons to achieve a stable electron configuration. It has seven valence electrons and tends to gain one more electron to complete its outer shell and attain a full octet.
What does a sulfur atom need to do to have a full valence level?
A sulfur atom needs to gain two electrons or share electrons with other atoms to have a full valence level. Sulfur has six valence electrons and can achieve stability by forming two additional bonds.
How many additional valance electrons does fluorine need to have a valance shell?
1
How many additional valence electrons does fluorine need to have a full valance shell?
1
How many additional valence electron does fluorine need to have a full valence shell?
ONE (apex)
How many electrons does fluorine atom have in its outermost unexcited main energy level?
A fluorine atom has 7 electrons in its outermost unexcited main energy level. This allows fluorine to achieve a full valence shell of 8 electrons by gaining one additional electron through bonding.
How many more electrons can fit in the valence shell of a fluorine atom?
A fluorine atom can accommodate one more electron in its valence shell to achieve a full valence shell of 8 electrons.
How many bonds fluorine can form?
Fluorine can form 1 bond because it has 7 valence electrons and needs only 1 more electron to achieve a full valence shell of 8 electrons.
What element has two fewer valence electrons than noble gases?
all elements from group 16 or the chalcogens (oxygen, sulphur, selenium, tellurium and polonium)
Does fluorine gain or loose electrons?
Fluorine gains electrons to achieve a stable electron configuration. It has seven valence electrons and tends to gain one more electron to complete its outer shell and attain a full octet.
How many additional valence electrons does chlorine needs to have a full valence shell?
11 electrons makes the third energy level complete. One
How many additional valence electrons does chlorine need to have a full valence shells?
11 electrons makes the third energy level complete. One
How many additional valence electrons does chlorine need to have a full valence shell?
Chlorine needs one additional valence electron to have a full valence shell, as it has seven valence electrons in its outermost shell and aims to have a complete octet with eight electrons for stability.
What does a sulfur atom need to do to have a full valence level?
A sulfur atom needs to gain two electrons or share electrons with other atoms to have a full valence level. Sulfur has six valence electrons and can achieve stability by forming two additional bonds.
