What is the increasing atomic radii and increasing electronegativity of the following elements: Ne, Mg, Si, Zn,Ge,Se,Nb,Sb,Xe,Cs,Eu,Bi,Fr,Ra, and Cf

Answer 1

Radii and Elecotronegativity have similar periodic trends, but work in reverse of each other, so once we figure out one, in the context of this question the other answer is just the reverse answer.

Starting with Radii, the trend is moving left to right, size decreases on the table, and top to bottom, size increase. Knowing this we can say that higher atoms like Mg, Ne, Si are smaller than most of these, and then can say since Mg is more to the left than Si, it will then be bigger.

So from those ideas we can get, from small to large:

2nd row: Ne

3rd row: Si, Mg

4th row: Se, Ge, Zn

5th row: Xe, Sb, Nb

6th row:Bi, Eu, Cs

7th row: Cf, Ra, Fr

or altogether: Ne, SI, Mg, Se, Ge, Zn, Xe, Sb, Nb, Bi, Eu, Cs, Cf, Ra, Fr

Now for the electronegativity, it essentially the same order, just reversed.