Flashcard: Periodic Table - History and Trends

Front

What is the name of group 2A on the periodic table?

Back

Alkaline earth metals.

Front

Which element has a larger atomic radius than Zinc?

Back

Strontium.

Front

What are the PERIODS on the periodic table?

Back

The rows that go left to right.

Front

Why does Francium have the lowest ionization energy in Group 1?

Back

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

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom.

Front

What are alkali metals?

Back

Elements in group 1A of the periodic table, known for being highly reactive.

Front

What are noble gases?

Back

Elements in group 8A of the periodic table, known for their lack of reactivity.

Front

What is the trend in atomic radius across a period?

Back

Atomic radius decreases from left to right across a period.

Front

What is the trend in ionization energy down a group?

Back

Ionization energy decreases as you move down a group.

Front

What is electronegativity?

Back

A measure of the ability of an atom to attract electrons.