Periodic Trends

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom.

Front

What happens to atomic size as you move across a period in the periodic table?

Back

Atoms get smaller.

Front

How many valence electrons does a neutral atom of nitrogen have?

Back

5 valence electrons.

Front

What trend occurs in ionization energy as you move from left to right across a period?

Back

Ionization energy increases.

Front

Which atom has the largest atomic radius: Mg, B, S, or Br?

Back

Mg has the largest atomic radius.

Front

What is the trend in electronegativity as you move across a period?

Back

Electronegativity increases.

Front

Define electronegativity.

Back

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

Front

What is the trend in atomic radius as you move down a group in the periodic table?

Back

Atomic radius increases.

Front

Which group of elements is known as the noble gases?

Back

Group 18 elements.

Front

What is the general trend of metallic character as you move across a period?

Back

Metallic character decreases.