Chemistry Periodic Table Trends

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom in its gaseous state.

Front

Which element has the lowest ionization energy?

Back

Lithium.

Front

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

Back

Ionization energy decreases.

Front

What is the trend of ionization energy as you move across a period in the periodic table?

Back

Ionization energy increases.

Front

What is atomic radius?

Back

The distance from the nucleus of an atom to the outermost shell of electrons.

Front

Which has a larger atomic radius: Na or Na+?

Back

Na.

Front

What happens to atomic radius as you move down a group?

Back

Atomic radius increases.

Front

What happens to atomic radius as you move across a period?

Back

Atomic radius decreases.

Front

What are cations?

Back

Positively charged ions formed when an atom loses one or more electrons.

Front

True or False: Cations are larger than their parent atoms.

Back

False.