How do the following properties vary in a period and in a groupof Peri

1.	How do the following properties vary in a period and in a groupof Periodic tablei) Electropositivity (i) Atomic radius
Answer» Atomic radius patternsareobserved throughout theperiodic table. Atomic size gradually decreases from lefttoright across aperiodofelements. This is because, within aperiodor family ofelements, all electronsareaddedtothe same shell. Tendency of atoms to lose electrons and form positive ion is known aselectropositivity. In aperiod electropositivitydecreases because of increase in ionization energy along aperiod. While in agroup electropositivityincreases because ionization energy decreases when we move down in agroup.

How do the following properties vary in a period and in a groupof Periodic tablei) Electropositivity (i) Atomic radius

Answer»

Atomic radius patternsareobserved throughout theperiodic table. Atomic size gradually decreases from lefttoright across aperiodofelements. This is because, within aperiodor family ofelements, all electronsareaddedtothe same shell.

Tendency of atoms to lose electrons and form positive ion is known aselectropositivity. In aperiod electropositivitydecreases because of increase in ionization energy along aperiod. While in agroup electropositivityincreases because ionization energy decreases when we move down in agroup.

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