Question

The common property of both elements in the periodic table is

Answer 1

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Common property of both elements in periodic table

1.Reactivity decreases form top to bottom

The reactivity g metals especially alkali is caused by the fact that donating a single electron in their outermost shell will cause then to have stable electron configuration of the nearest noble gas

2.atomic Raddi increases as atomic number increases

with the increases in atomic number in period of the periodic table metallic character decreases metallic character decreases as you move across the periodic table from left to right

3.electropositive character increases down the group

Electropositive character is defined as the tendency of the element to lose electornic raducing porperty of an element is its ability to give up electrons(s) and by virute of this ability it reduced the other element .The greater the electropositive charcater the more is its reducing property in a group reducing property increases from top to bottom as electropositive character increases from top to bottom

4.electronegativity decreases on moving down a group

down a group

as you move down a group the number of energy level increases

Across a period

the number of energy levels stay same

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