Which of the following correctly describes electronegativity? A measure of the repulsion between the valence electrons of an atomThe level of electron shielding in an atomThe energy difference between energy levelsA measure of the attraction between an atom and bonding electrons

Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves. The higher the electronegativity, greater is an atom's attraction for electrons. Given below is a list of elements and their electronegativity value. Element Electronegativity Value(Pauling scale)H 2.2Li 1.0Be 1.6B 2.0C 2.6N 3.0O 3.4F 4.0Na 0.9 Q 1.3Identify which periods and groups are represented by the elements listed and explain the trends in the electronegativity shown in the table.

Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond.It is important to realise that a lot of what we know about the structure of atoms has been developed over a long period of time. This is often how scientific knowledge develops, with one person building on the ideas of someone else. Nowadays, we know that atoms are made up of a positively charged nucleus in the centre surrounded by negatively charged electrons. The number of electrons determines the atomic number of an atom. The number of electrons on the outermost shell determines the valency of an atom.Given below is the atom of an element sodium. Oorka. “3D Render of Atom Structure of Sodium Isolated over White Background...” IStock, https://www.istockphoto.com/photo/sodium-gm639850140-115565943 Q 1.1A 3State the number of subatomic particles present in a sodium ion No. of protons =No. of neutrons =No. of electrons =

define electronegativity of atoms and explain its influence onbonding

Which of the following correctly outlines why electronegativity increases across a period?There are more electrons and more repulsion between electronsThe level of electron shielding increases There is an increase in nuclear charge and a decrease in the atomic radiusThe atomic radius decreasesReport feedbackPrevious

Which of the following describes the trends in electronegativity?It decreases across periods but increases down groupsIt increases across periods but decreases down groupsIt decreases across periods and down groupsIt increases across periods and down groups