Periodic Trends

Which element in Period 2 has the greatest atomic radius? Options: Be, C, Na, Li

Of the halogens, which has the smallest radius?

Options: F, Br, He, At

As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element...

Atoms that have a high electronegativity, _______________. Options: give up their electrons more easily., hold on to their electrons more tightly., have more electron shells.

Ionization energy is...

Which statement correctly and completely identifies a trend? Options: Atomic radius decreases across a period and increases down a group., Electronegativity decreases across a period and decreases down a group., Ionization energy increases across a period and increases down a group., Ionic radius increases across a period and increases down a group.

The element with the largest electronegativity in the halogens is - At, F, Cl, Br

Atom with the largest atomic radius in Group 18: Ar, He, Kr, Rn

Why does Francium (Fr) have the lowest ionization energy in Group 1? Options: it has the smallest number of valence electrons, it has the greatest atomic mass, it has the greatest number of protons, so it attracts its electrons the strongest, its 1 valence electron is very far from the nucleus, so little energy is needed to remove it

As you move down a group on the periodic table, why do atoms get bigger?