Atomic Radius Trend Short Practice

Front

What is atomic radius?

Back

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

Front

How does atomic radius change 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, which pulls electrons closer to the nucleus.

Front

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

Back

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

Front

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

Back

Atomic radius decreases across a period and increases down a group.

Front

Which element has a larger atomic radius: Sodium (Na) or Chlorine (Cl)?

Back

Sodium (Na) has a larger atomic radius than Chlorine (Cl) because it is located further to the left in the periodic table.

Front

What is the atomic radius of Noble Gases compared to other groups?

Back

Noble Gases have the smallest atomic radius in their respective periods due to their full valence shell.

Front

Why do atoms get smaller as you move across a period?

Back

Atoms get smaller because the number of protons increases, leading to a stronger positive charge that pulls electrons closer.

Front

Which element has the largest atomic radius: Antimony (Sb), Arsenic (As), Phosphorus (P), or Nitrogen (N)?

Back

Antimony (Sb) has the largest atomic radius among these elements.

Front

What is a period in the context of the periodic table?

Back

A period is a horizontal row in the periodic table that indicates elements with the same number of electron shells.

Front

What is a group in the context of the periodic table?

Back

A group is a vertical column in the periodic table that indicates elements with similar chemical properties due to having the same number of valence electrons.