Alkali Metals

Flashcards about Alkali Metals

Physical Properties of Alkali Metals

Atomic size increases as you go down the group, melting point decreases, and density increases.

Conductivity of Alkali Metals

Good conductors of electricity.

Softness of Alkali Metals

Soft and can be cut with a knife.

Appearance of Alkali Metals when cut

Silvery when freshly cut.

Density of Alkali Metals

Low density; some can float on water.

Reactivity of Alkali Metals

Reactivity increases as you go down the group.

Electron Loss in Alkali Metals

Lose 1 electron easily, creating more shields and a large atomic radius.

Lithium + Water yields

Hydrogen + Lithium Hydroxide

Sodium + Water yields

Hydrogen + Sodium Hydroxide

Uses of Lithium

Used in batteries (especially rechargeable ones in electric cars) and as a mood stabilizer in medicine.

Uses of Sodium

Used in titanium production, as a coolant in nuclear reactors, and helps move nutrients/waste in the body.

Uses of Potassium

Helps the heart to function well.