Periodic Trends

Front

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

Back

Li

Front

Of the halogens, which has the smallest radius?

Options: F, Br, He, At

Back

F

Front

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

Back

decreases

Front

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

Back

hold on to their electrons more tightly.

Front

Ionization energy is...

Back

how much energy it takes to remove an electron from an atom

Front

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.

Back

Atomic radius decreases across a period and increases down a group.

Front

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

Back

F

Front

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

Back

Rn

Front

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

Back

its 1 valence electron is very far from the nucleus, so little energy is needed to remove it

Front

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

Back

The atoms have more energy levels