[" As we move from left to right,the "],[" ctronegativity increases.An atom which is "],[" hly electronegative has "],[" lorge size "],[" high ionisation enthalpy "],[" low chemical reactivity."]

As we move across a period from left to right, metallic character ______ (decreases/ increases)

Metallic Character The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electropositivity decreases due to decrease in atomic size. Non-Metallic Character The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion. Down the group, electronegativity decreases due to increase in atomic size and across the period, from left to right electronegativity increases due to decrease in atomic size Which of the following reason correctly justifies that “Fluorine (72pm) has smaller atomic radius than Lithium (152pm)”?

Which parameter decreases as we move from left to right along a period?

On moving from left to right across a period in the periodic table the size of the atom generally:

How does the electronegativity changes as we move from left to right across a period ?

Metallic Character The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electropositivity decreases due to decrease in atomic size. Non-Metallic Character The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion.Down the group, electronegativity decreases due to increase in atomic size andacross the period, from left to right electronegativity increases due to decreasein atomic size Identify the reason for the gradual change in electronegativity in halogensdown the group.