Elements from the halogen group including F, Cl, Br have pretty high electronegativities. The most electronegative element is Fluorine with a score of 4.0 (the highest possible.) Across from Fluorine we also have N and O with high electronegativities.

What are the 3 most electronegative elements?

And those three elements are fluorine, oxygen, and nitrogen. And in fact, the reason why they’re capable is hydrogen bonds is because these three are the most electronegative elements. So again, this is a mnemonic you can use to memorize the most electronegative elements on the periodic table.

Which element has the highest electronegativity and why?

Fluorine is assinged the oxidation number of -1 because it attracts the electrons in the bond more strongly than the carbon does. Thus, fluorine appears to have an extra electron, -1 oxidation number. F is the most electronegative element on the periodic table.

What is the 2nd most electronegative atom?

Oxygen is the second most electronegative element after fluorine. Its electronegativity is about 3.5.

What is the electronegativity of P?

The first scale of electronegativity was developed by Linus Pauling and on his scale phosphorus has a value of 2.19 on a scale running from from about 0.7 (an estimate for francium) to 2.20 (for hydrogen) to 3.98 (fluorine).

Which element has the highest electronegativity in period 3?

In Period 3, sodium with 11 protons is the least electronegative element, and chlorine with 17 protons is the most electronegative element.