atomic radius [ENDORSED]

[805601399]

Since atomic radius decreases across a period and increases down a group, would francium have the largest atomic radius of all the elements?

[Edmond Chu 1C]

Yes, since atomic radius increases down a group and decreases across a period, Francium would have the largest atomic radius.

[gwenkelley3L]

Yep, francium would be the biggest!

[Uma Patil 2A]

Yes! this is because atomic radius increases down a group, and decreases along a period.

[Julia Todorov 2F]

Yes! Francium would have the largest and helium the smallest!

[Caitlyn Lo 2F]

Yes Francium would have the largest atomic radius. Atomic radius increases going down a group because as more electrons shells are being added, the atomic radius gets larger. Atomic radius decreases going across a period because as more electrons are added in the same electron shell, the attraction between the nucleus and the electrons increases as more protons and electrons are added and this attraction causes the electrons to be pulled closer to the nucleus causing the atomic radius to decrease.

[Jaipal Virdi 2I]

You would be correct! Francium has the largest atomic radius according to our know periodic trends as it is the farthest down and farthest to the left.

[Andrew Nguyen 1E]

Francium, out of all discovered elements, would have the largest atomic radius. Because atomic radius depends on effective nuclear charge and the highest shell of electrons, Francium would have the highest since it is the first element of Row 7. As a result, it has the least amount of protons in the row (lesser effective nuclear charge) and an electron in the n=7 energy level.