Periodic Trends

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

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

Back

5

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract and hold onto electrons.

Front

How does electronegativity change in Group 15 as you move down the group?

Back

Electronegativity decreases as you move down Group 15.

Front

Which atom has the most valence electrons: Ca, C, Cl, or Si?

Back

Cl has the most valence electrons, with 7.

Front

Which atom is more electronegative: K, Rb, Cl, or B?

Back

Cl is more electronegative than K, Rb, and B.

Front

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

Back

The atomic radius increases as you move down a group.

Front

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

Back

Ionization energy generally increases as you move from left to right across a period.

Front

What is the relationship between electronegativity and ionization energy?

Back

Generally, elements with high electronegativity also have high ionization energy.

Front

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

Back

Metallic character decreases as you move from left to right across a period.