Chemistry Chapter 5 Test

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

Which element has the smallest ionization energy in Period 6?

Back

Cesium (Cs) has the smallest ionization energy in Period 6.

Front

What happens to atomic size as you move down the periodic table?

Back

Atoms get larger as you move down the periodic table because they have more energy levels.

Front

What is electronegativity (EN)?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which element has a greater electronegativity: Cl or Al?

Back

Chlorine (Cl) has a greater electronegativity than Aluminum (Al).

Front

How does atomic size change as you move across a period in the periodic table?

Back

Atoms tend to get smaller as you move across a period because they have more protons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does magnesium (Mg) have?

Back

Magnesium (Mg) has 2 valence electrons.

Front

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

Back

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

Front

What is the trend in electronegativity as you move down a group?

Back

Electronegativity generally decreases as you move down a group in the periodic table.