Question

what is the expected trend in the variation of nonmetallic character of element from left to right in a period

Answer 1

Metallic character decreases as you move across a period in the periodic tablefrom left to right. This occurs as atoms more readily accept electrons to fill a valence shell than lose them to remove the unfilled shell. Metallic character increases as you move down an element group in the periodic table.

Answer 2

Answer: Non-Metallic character increases from left to right.

Explanation:A simple way to learn thus is :

You know that leftmost element is Na in 3rd period which is a good metal and the rightmost element is noble gas which is a non metal, so non metallic character increases while moving from left to right in a period.