Periodic Trends Review

Front

What is the atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It is a measure of the size of an atom.

Front

Which element has a larger atomic radius: magnesium or sulfur?

Back

Magnesium has a larger atomic radius than sulfur.

Front

Define electronegativity.

Back

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

Front

What is the trend of atomic radius in a group of the periodic table?

Back

Atomic radius increases as you move down a group due to the addition of electron shells.

Front

What is the trend of atomic radius across a period in the periodic table?

Back

Atomic radius decreases as you move from left to right across a period due to increasing nuclear charge.

Front

Which element has the largest atomic radius in Group 18?

Back

Radon (Rn) has the largest atomic radius in Group 18.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in the gas phase.

Front

Which element has a higher electronegativity than arsenic (As)?

Back

Nitrogen (N) has a higher electronegativity than arsenic (As).

Front

What is the trend of electronegativity in a group of the periodic table?

Back

Electronegativity decreases as you move down a group due to increased distance between the nucleus and valence electrons.

Front

What is the trend of electronegativity across a period in the periodic table?

Back

Electronegativity increases as you move from left to right across a period due to increasing nuclear charge.