Periodic Table Trends

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are periods in the periodic table?

Back

Horizontal rows in the periodic table, indicating the number of electron shells in the elements.

Front

What are groups in the periodic table?

Back

Vertical columns in the periodic table, indicating elements that have similar chemical properties due to having the same number of valence electrons.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom in its gaseous state.

Front

What is atomic radius?

Back

The size of an atom from the nucleus to the outermost electron.

Front

What are alkali metals?

Back

Elements in group 1 of the periodic table, known for being highly reactive and having one electron in their outer shell.

Front

What is the trend of electronegativity across a period?

Back

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

Front

What is the trend of atomic radius down a group?

Back

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

Front

What is the trend of ionization energy across a period?

Back

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