Atomic Radius and Ionization Energy - Chemistry

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 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 down a group because additional energy levels are added, making the atom larger.

Front

What is ionization energy?

Back

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

Front

How does ionization energy change across a period?

Back

Ionization energy generally increases from left to right across a period due to increased nuclear charge.

Front

How does ionization energy change down a group?

Back

Ionization energy decreases down a group because the outer electrons are further from the nucleus and are less tightly held.

Front

Which element has the largest atomic radius: Li, B, Ne, or N?

Back

Lithium (Li) has the largest atomic radius among these elements.

Front

Which element has the lowest ionization energy: O, B, C, or F?

Back

Boron (B) has the lowest ionization energy among these elements.

Front

What is the reason atoms get larger as you move down a group in the periodic table?

Back

Atoms get larger because they have more energy levels, which increases the distance between the nucleus and the outermost electrons.

Front

Which element has the highest ionization energy: Li, K, Fr, or Na?

Back

Lithium (Li) has the highest ionization energy among these elements.