Periodic and Group Trends

Front

How many valence electrons do elements in the Boron Group have?

Back

3

Front

Which element has a higher ionization energy than arsenic (As)?

Back

Carbon (C)

Front

Which element has the greatest atomic mass?

Back

Bromine (Br)

Front

Which atom has the largest atomic radius?

Back

Francium

Front

As you move across the periodic table, why do atoms tend to get smaller?

Back

Because the atoms have more protons.

Front

What is the general trend of ionization energy across a period?

Back

Ionization energy increases across a period.

Front

What is the general trend of atomic radius down a group?

Back

Atomic radius increases down a group.

Front

What is the relationship between electronegativity and atomic size?

Back

Electronegativity decreases as atomic size increases.

Front

What is the trend of metallic character across a period?

Back

Metallic character decreases across a period.

Front

What is the significance of the octet rule in relation to valence electrons?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.