Periodic Trends Practice

Front

What is atomic radius?

Back

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

How does atomic radius change across a period in the periodic table?

Back

Atomic radius decreases from left to right across a period due to increasing nuclear charge, which pulls the electrons closer to the nucleus.

Front

How does atomic radius change down a group in the periodic table?

Back

Atomic radius increases down a group because additional electron shells are added, which increases the distance between the nucleus and the outermost electrons.

Front

What is electronegativity?

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond. It is a measure of how strongly an atom can attract shared electrons.

Front

Which element has a higher electronegativity: Carbon (C) or Arsenic (As)?

Back

Carbon (C) has a higher electronegativity than Arsenic (As).

Front

What is the trend of electronegativity in the periodic table?

Back

Electronegativity increases from left to right across a period and decreases down a group.

Front

What is the significance of noble gases in terms of atomic radius?

Back

Noble gases have complete electron shells, making them stable and generally having larger atomic radii compared to other elements in the same period.

Front

List the following elements in order of increasing atomic radius: S, Co, Cs.

Back

S, Co, Cs.

Front

What is the atomic radius of Potassium (K) compared to other elements in Period 4?

Back

Potassium (K) has the largest atomic radius in Period 4.

Front

What happens to the atomic radius as you move from metals to nonmetals in a period?

Back

The atomic radius decreases as you move from metals to nonmetals in a period.