If florine is small in size then what about oxygen itz atomic no is 8. Compared to florin oxygen is small.
(Sat, Jan 1, 2011 06:31:53 AM)
In flurine outer shell becomes 7 electrons. Hence one electron accepts from any element its outer shell will 8 electrons. So it is electronegative element.
Ruksana Khan said:
(Thu, Mar 10, 2011 12:35:26 AM)
Fluorine is the most electronegative element among the given options Sodium, bromium and Oxygen because of among these elements fluorine has small element. As atomic size increases, nuclear attraction decreases, and therefore the electro negativity decreases. As we move from left to right in periodic table atomic size decreases then EN increases in 2nd period elements. The F - EN is 4.
(Fri, Jun 3, 2011 10:48:16 AM)
Atomic no of florine is 9 its configuration is 2,7 outermost shell contain 7 electrons it is easy to gain one 'e' to complete its octect. That's why it is more electronegative element.
Because florine is more electronegativity than other molecule.
(Thu, Oct 6, 2011 10:14:18 PM)
The reason is that flourine is to the right in the periodic table, as we know that when we move from left to right in PT electronegativity increases.
(Fri, Dec 9, 2011 07:42:12 PM)
Since the a flourine have smallest size and require 1 elec to complete a outet state.as we move R-L of periodic table electro-neg decrease.
Gopala Krishnan said:
(Fri, Jan 20, 2012 09:20:05 PM)
F is the most electronegative element compare with other elements... due to
1.from L-R atomic size decreases, electronegativity increases because of nuclear attraction increases...
2.its e-configuration is 1S2 2S2 2P5... in p shell having 5e- it will be get another 1e- its formed octet(8e-) configuration as well as stable... so its easily attract e-.....
(Sun, Jan 22, 2012 09:24:24 AM)
Electronegativity is defined as the phenomenon where the ability of an element to pull shared pair of electrons towards itself.
As we move across the group in the periodic table, electronegativity increases and as we move down the group it decreases. Flourine is the last element placed before noble gases in the periodic table. Its electron config is 1s22s22p5. Owing to its small atomic size (than oxygen) , flourine atom has a higher tendency to pull shared pair of electrons towards itself.
(Tue, Apr 3, 2012 09:55:06 PM)
Because of presenting in the halogen group it having the higher electron negativity. Fluorine is in small size so it wants only one electron for this it is the strong oxidizing agent.
Rahul Kumar said:
(Fri, Apr 13, 2012 03:54:02 PM)
Because it is a halogen & halogens are more electronegative than other elements.
Fluorine consists of negative oxidation states than other halogen elements. So that it considered as the most electronegative element.
Okoh Adem said:
(Wed, Apr 25, 2012 10:27:56 PM)
Flourine is d most electronegative because its outer most shell has 7electrons which therefore makes it react easily with other elements in other to achieve an octet structure.
(Mon, Apr 30, 2012 07:59:12 AM)
While going to the right side the size of the atom is decreasing, hence the size of the oxygen is higher than fluorine. Also to obey the octet rule fluorine needs one more electron. All these makes fluorine more electronegative than oxygen.
(Mon, Jul 2, 2012 03:12:44 PM)
Atomic no of florine is 9 its configuration is 2, 7 outermost shell contain 7 electrons it is easy to gain one 'e' to complete its octect. That's why it is more electronegative element.
Jubilee Kessie said:
(Mon, Jan 7, 2013 09:00:35 PM)
F because, electronegativity increase across the period and decrease down the group. But F and O are of the same period with atomic numbers 8 and 9 respectively and since F has a higher atomic no than O, hence F is highly electronegative than the other elements.
Naveen Krishna said:
(Mon, Jan 14, 2013 09:01:09 AM)
Most electronegative element is F. No, it is not the element with highest electron with highest electron affinity because of its very small size.
(Tue, Jan 29, 2013 04:12:08 PM)
F is the most electonegative element and its electronegativity 3.98.
Satish Pal said:
(Mon, Mar 4, 2013 11:22:35 PM)
F is most electronegative element because it size is very small.
(Wed, Apr 3, 2013 04:16:18 PM)
Because eletronegative increase across the period and decrease down the group.
(Mon, Apr 8, 2013 10:56:55 AM)
Flourine is the most electron nagetive, because it has 7 valence electron in its outmost shell and need 1 electron to gain an octet structure, this makes it to react easily with the alkaline metal of group 1 elements and other metals.