is more widespread common other elements

is most wiedespread or common element in the universe

is the most widespread or common element in the universe

is more widespread and common than other elements

is the heaviest halogen

is the lightest halogen

is the lightest element

is the heaviest element

contributes to some of the deadliest toxins

contributes to some of the deadlier toxins

is the deadlier element

is the deadliest element

The sodium is more reactive than the lithium.

Sodium is more reactive than lithium.

The lithium is more reactive than the sodium

Lithium is more reactive than sodium

can have a really bad smell

helps us make fire

is the tenth most common element by mass on Earth

is the fifth most common element in the universe.

is a component of all proteins

is a component of some proteins

is not found in living systems

is the rarest element in nature

is the heavyer and dangourest metal

is the heaviest and dangerousest metal

is the heaviest and most dangerous metal

is the most heavy and most dangerous metal

is the reactiver element

is the most reactive non-metallic element

is the most reactive element

is the reactivest element

the easiest in the world

the easyer in the world

easier than others

easyer than others