Which lair of elements have same electro electronegativity?
Answers
Explanation:
Fluorine, Oxygen, Nitrogen, Chlorine are the most electronegative elements.
The electronegativity increases from left to right and decrease from top to bottam. In these sense, every element posses different different electronegativity. We need to see the size of atom, the electron cloud etc for this we can assume that the number of electrons in the last shell of an atom is same down a group. Example alkali metal contain only one electron in their outermost shell. So by this we can know that the electronegativity would be same for all the alkali metal but the size of an atom will distinguish all the alkali metals have different electronegativity. Since, they are doner of electron, they will have less electronegativity but in all alkali which one has very less electronegativity will be determine by the size and so the size of Li is the smallest among Alkali metals. So, negative charge repels and opposite charge attract towards each other. So, the shell of Li is the smallest so it has more electronegativity than all alkali because, when the size of an atom will be less than the electrons will repel more and as compare to bigger size atoms like Fr in Alkali metal their shell will big and farther distance of outermost shell.
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