Periodic Trends

Front

What is a cation?

Back

A positive ion formed from the loss of electrons.

Front

What is electronegativity?

Back

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

Front

Which element has the largest electronegativity in the halogens?

Back

Fluorine (F) is the most electronegative element in the halogens.

Front

What is the trend in atomic radius across a period?

Back

Atomic radius decreases from left to right across a period due to increased nuclear charge.

Front

What is the trend in atomic radius down a group?

Back

Atomic radius increases down a group due to the addition of electron shells.

Front

Which periodic group has the smallest atomic radius?

Back

Noble Gases have the smallest atomic radius.

Front

What is an anion?

Back

A negative ion formed from the gaining of electrons.

Front

How does the size of P compare to P-3?

Back

P-3 is larger than P because it has gained 3 electrons.

Front

What is the relationship between ionization energy and atomic size?

Back

Ionization energy generally increases as atomic size decreases.

Front

What is the trend in electronegativity down a group?

Back

Electronegativity decreases down a group due to increased distance from the nucleus.