Flashcard on Periodicity

Front

Which element has the smallest atomic radius?

Back

Neon (Ne) has the smallest atomic radius among Li, Be, C, and Ne.

Front

What is a horizontal row on the periodic table called?

Back

A horizontal row on the periodic table is called a Period.

Front

What is the distance from the nucleus of an atom to the valence electrons called?

Back

The distance from the nucleus to the valence electrons is called the Atomic Radius.

Front

What type of agent are metals considered due to their ability to donate electrons?

Back

Metals are considered reducing agents because they are electron donors.

Front

What is the trend in atomic radius as you move down a group in the periodic table?

Back

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

Front

What is the trend in atomic radius as you move across a period from left to right?

Back

The atomic radius decreases as you move from left to right across a period due to increased nuclear charge.

Front

Define ionization energy.

Back

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

Front

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

Back

Ionization energy decreases as you move down a group due to increased distance from the nucleus.

Front

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

Back

Ionization energy increases as you move from left to right across a period due to increased nuclear charge.

Front

Define electronegativity.

Back

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