In which of the following,the elements Al, B, | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Metallic character is defined as the tendency of an element to lose electrons. It decreases along a period from left to right and increases down a

Vedclass · Accepted Answer

$B < Al < Mg < K$

Vedclass · Answer

(A) Metallic character is defined as the tendency of an element to lose electrons. It decreases along a period from left to right and increases down a group. Comparing the positions in the periodic table: $B$ (Boron) is in period $2$,group $13$. $Al$ (Aluminum) is in period $3$,group $13$. $Mg$ (Magnesium) is in period $3$,group $2$. $K$ (Potassium) is in period $4$,group $1$. Since metallic character increases down a group and decreases across a period,the order of increasing metallic character is $B < Al < Mg < K$.

In which of the following,the elements $Al, B, Mg$ and $K$ are correctly arranged in the increasing order of their metallic character?

Similar Questions

How many elements in the periodic table are gases? Provide their positions in the periodic table.

The reactivity of the following compounds toward water is in the order:

In $s-$block,on moving down the group,the reactivity of metals with water and air increases. Which of the following factors has no significance for this trend of reactivity?

In the reaction $2Br^- + X_2 \to Br_2 + 2X^-$,what is $X_2$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module