Question

how do the following properties vary in a period and in a group of periodic table.1 electropositivity 2 atomic radius ​

Answer 1

electropositivity decreases as we move along the period because of decrease in atomic size

atomic radius decreases as we move along the period because nuclear charge increases

Answer 2

electropositivity increases down a group and decreases across a period... atomic radius also increases down a group and decreases across a period as additional electrons are added to the same outermost shell in a period