Periodic Trends

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

How does electronegativity change in Group 15 as you move down the group?

Back

Electronegativity decreases as you move down Group 15.

Front

Which element is more electronegative: K, Rb, Cl, or B?

Back

Cl (Chlorine) is more electronegative than K (Potassium), Rb (Rubidium), and B (Boron).

Front

What is the trend in atomic radius as you move across a period in the periodic table?

Back

Atomic radius decreases as you move from left to right across a period.

Front

Why do atoms get smaller as you move across a period?

Back

Atoms get smaller because they have more protons, which increases the positive charge in the nucleus and pulls electrons closer.

Front

What is the atomic radius of metals compared to nonmetals?

Back

Metals generally have a larger atomic radius than nonmetals.

Front

What is the relationship between ionization energy and electronegativity?

Back

Generally, as electronegativity increases, ionization energy also increases.

Front

How many valence electrons does a neutral atom of nitrogen have?

Back

A neutral atom of nitrogen has 5 valence electrons.

Front

What is the trend in ionization energy as you move down a group in the periodic table?

Back

Ionization energy generally decreases as you move down a group.

Front

What is the trend in electronegativity as you move across a period?

Back

Electronegativity generally increases as you move from left to right across a period.