00:01
This question is mainly concerned with the atomic radius of a few elements are given and they are tellurium, telurium, tin, phenon and antimony.
00:30
So we need to find out, we need to arrange these elements in order of increasing atomic radius.
00:40
So this can be done and it is already mentioned in the question itself that this question should be solved using only periodic trouble.
00:57
So the first and foremost thing, the fact, major fact, we can identify from period table about this element are, all these four elements are the members of fifth period.
01:14
In the periodic table and that let's assign let's put the atomic number also for our convenient explanation the tellurian atomic number is 52 and for tim the atomic number is 50 and for phenon the atomic number is 54 and for antimony it is 51 let's let's talk about a few facts about atomic radius now.
01:55
Actually, atomic radius is the distance from atoms nuclear to the outer edge of the electron cloud.
02:05
So this is the structure of the atom then.
02:08
It is the center.
02:10
From this to the outer edge of the electron cloud, here let's assume there are a few electrons are here.
02:18
So from the nucleus to the outage of the electron cloud.
02:22
And this distance which turns to be atomic radius.
02:26
In general, the atomic radius decreases across a period...