(40) GCSE Chemistry Revision "Metals"

Periodic Table

A table of the chemical elements arranged by atomic number, electron configuration, and recurring chemical properties.

Metals

Elements that are typically shiny, good conductors of heat and electricity, and are found on the left and center of the periodic table.

Non-metals

Elements that are typically poor conductors of heat and electricity, found on the right side of the periodic table.

Group One Metals

Highly reactive metals, including lithium and sodium, that have one electron in their outer energy level.

Transition Metals

Metals found in the center of the periodic table, generally less reactive than the metals in groups one and two.

Noble Gases

Group zero elements that have a full outer energy level, making them stable and unreactive.

Positive Ion

A charged particle that results when an atom loses one or more electrons, resulting in an overall positive charge.

Outer Energy Level

The highest energy level of electrons in an atom, which determines how it reacts with other atoms.

Lithium Ion

Positively charged lithium atom that results when lithium loses its one outer electron.

Barium Ion

Positively charged barium atom that results when barium loses its two outer electrons.

Electron Configuration

The distribution of electrons in an atom's energy levels, which determines the atom's chemical properties.

Reactivity of Metals

The tendency of metals to lose electrons during chemical reactions, resulting in the formation of positive ions.