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Electronegativity is an atoms relative ability to remove an electron pair in the formation of a covalent bond. I.e. an atoms ability to steal a pair of electrons from the outer ring of another atom to make a covalent bond, (like a contract to share electons in order to fill there outer shells and become stable) Across the Periodic Table (left to right) this gets harder to do due to an increase in attraction forces between the nuclear charge and the outer electons. Therefore across the periodic table 'more' electronegativity energy is required to remove those electrons. Down the periodic table, from top to bottom attraction forces between the electrons in the outer shell and the central nuclear charge decreases (shielding effect of sub levels and increased atomic radius), this make it easier for the electrons to be stolen, so there is less electronegativity required. Fluorine is the highest and furthest to the right, making it the most electronegative. (Helium and Neon etc have full outer shells so arent involved in covalent bonds)
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoBecause fluorine was the element that the scientists based the electronegativity chart off of, so, relative to the amount of elements on the table, they made fluorine the most electronegative element, and based all of the others off of it. Fluorine was the chosen element instead of helium for the singular reason that noble gases have almost non-existent electronegativity. By the way, fluorine's electronegativity is four.
Wiki User
∙ 11y agoFluorine is the most electronegative element. Electronegativity describes the ability of an element to hold onto its electrons and fluorine gathers electrons - this is because it has 7 valence electrons and only needs one more to form a full outer shell.
Oxygen is somewhat electronegative, but not as much as fluorine. It needs 2 more electrons for a full outer shell, harder to obtain than a single electron.
Wiki User
∙ 10y agobecause it has the highest capability to attract pair of electrons
Wiki User
∙ 9y agoIt is the most electronegative element on the L&J-scale
Wiki User
∙ 7y agoThis is because flurine easily accept electrons.
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Which is the most electronegative element lithium or oxygen?
Across a period, electronegativity increases. Hence oxygen is more electronegative than lithium. However fluorine is the most electronegative element on the periodic table.
Why the compounds of fluorine with oxygen are called fluorides of oxygen and not oxides of fluorine?
As fluorine is more electronegative than oxygen, fluorine acts as the electron acceptor in the compounds with oxygen. As fluorine becomes partially negative charged and positive for oxygen, they are called fluorides.
Is oxygen more electronegative than phosphorus?
According to the Pauling scale, the electronegativity of oxygen is 3.44 while that of phosphorus is 2.19. Therefore oxygen is more electronegative than phosphorus, i.e. the oxygen atom has a greater tendency to attract electrons towards itself than the phosphorus atom. Fluorine is the most electronegative element in the periodic table, with an electronegativity value of 3.98.
Which element in H20 is more electronegative?
Oxygen is more electronegative than hydrogen.
Is chlorine more electronegative than oxygen?
Oxygen is more electronegative than chlorine. The electronegativity of oxygen is 3.44 and that of chlorine is 3.16 on the Pauling scale.
Why carbon is less electronegative than oxygen?
fluorine is the most electronegative atom . therefore atoms closer to fluorine will be more electronegative.
Why fluorine cannot form oxyacids?
Fluorine can not form oxyacids because fluorine is more electronegative than oxygen, and oxyacids are formed only from elements that are less electronegative than oxygen.
Which is the most electronegative element lithium or oxygen?
Across a period, electronegativity increases. Hence oxygen is more electronegative than lithium. However fluorine is the most electronegative element on the periodic table.
Fluorine is more electronegative than oxygen?
Yes it is more electro negative. F has the highest electro negativity
Is 0-F polar or non polar?
the Oxygen-Fluorine bond is polar, as the fluorine is more electronegative than the Oxygen, the Fluorine would be the negative side
Why the compounds of fluorine with oxygen are called fluorides of oxygen and not oxides of fluorine?
As fluorine is more electronegative than oxygen, fluorine acts as the electron acceptor in the compounds with oxygen. As fluorine becomes partially negative charged and positive for oxygen, they are called fluorides.
What element has a bigger electronegative sulfur or oxygen?
Oxygen is more electronegative. Oxygen is above sulfur on the Periodic Table. As you go up on the table electronegativity increases. The only thing more electronegative than oxygen is fluorine.
Is oxygen more electronegative than phosphorus?
According to the Pauling scale, the electronegativity of oxygen is 3.44 while that of phosphorus is 2.19. Therefore oxygen is more electronegative than phosphorus, i.e. the oxygen atom has a greater tendency to attract electrons towards itself than the phosphorus atom. Fluorine is the most electronegative element in the periodic table, with an electronegativity value of 3.98.
Are nonmetals more electronegative than metals?
Yes, non-metals are more electronegative than metals. Fluorine is the most electronegative element, and it is a nonmetal.
Is calcium more electronegative than fluorine?
Fluorine is more electronegative than calcium. The electronegativity of calcium is 1. The electronegativity of fluorine is 3.98.
Why cl2o is called dichlorine monoxide while f2o is called oxygen difluoride?
Fluorine is more electronegative than oxygen, so it's named as the anion. Chlorine is less electronegative than oxygen, so it's named as the cation.
How does fluorine's elecetronegativity compare to the elecetronegativity of oxygen and chlorine?
Fluorine has the highest electronegativity of any element. Its electronegativity is 4. Oxygen has the second highest electronegativity of any element, with an electronegaitivity of 3.5, and chlorine has an electronegativity of 3.16 on the Pauling scale. Note that there is more than one scale for measuring electronegativity. But no matter which scale you use, Fluorine is more electronegative than oxygen, which is more electronegative than chlorine.
