Question

Which has more non-metallic character from the elements ${}^{\prime }{X}^{\prime }$ and ${}^{\prime }{Y}^{\prime }$, with electronic configurations $2,8,5$ and $2,8,6$ respectively?

• A. $X$
• B. $Y$
• C. Both have same non-metallic character
• D. None of the above

Answer 1

The correct option is B $Y$

As we move from left to right across a period, the non-metallic character increases. Here, $X$ has atomic number $15$, so, the element is Phosphorous. $Y$ has atomic number $16$, so, the element is Sulphur. As sulphur is present more to the right of the table, so according to the general trend it is more non-metallic. So, $Y$ has more non-metallic character.

Hence, option $B$ is correct.