Chapter 5 ACP Chemistry

Front

How many valence electrons do the group 2 elements have?

Back

Group 2 elements have 2 valence electrons.

Front

What happens to electronegativity as you move down a column in the periodic table?

Back

Electronegativity decreases as you move down a column.

Front

Within a period of elements, as the atomic number increases, what happens to the ionization energy?

Back

Ionization energy generally increases as atomic number increases.

Front

What is the definition of ionization?

Back

Ionization is the energy required to remove electrons from an atom.

Front

What is the most characteristic property of noble gases?

Back

Noble gases are generally unreactive.

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Front

How does atomic radius change across a period?

Back

Atomic radius generally decreases across a period from left to right.

Front

What is the trend of ionization energy down a group?

Back

Ionization energy generally decreases down a group.

Front

What is the relationship between atomic number and the number of protons in an atom?

Back

The atomic number is equal to the number of protons in an atom.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.