Periodic Table & Trends

Front

What is the trend in ionization energy across a period?

Back

Ionization energy generally increases across a period from left to right due to increasing nuclear charge.

Front

What is the trend in ionization energy down a group?

Back

Ionization energy generally decreases down a group due to increased distance of the outer electrons from the nucleus and increased electron shielding.

Front

Define electronegativity.

Back

Electronegativity is a measure of how well an atom can attract and hold onto electrons.

Front

What is the trend in electronegativity across a period?

Back

Electronegativity generally increases across a period from left to right.

Front

What is the trend in electronegativity down a group?

Back

Electronegativity generally decreases down a group.

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

What is the trend in atomic radius across a period?

Back

Atomic radius generally decreases across a period from left to right.

Front

What is the trend in atomic radius down a group?

Back

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

Front

Which element is in period 4 and group 5?

Back

Vanadium (V) is located in period 4 and group 5.

Front

What is the significance of group numbers in the periodic table?

Back

Group numbers indicate the number of valence electrons in the outer shell of the elements.