Question

state two propertieswhich prove that oxygen is an element​

Answer 1

Answer:

At standard temperature and pressure (STP), two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O2. ...

Oxygen is a strong oxidizing agent and has the second-highest electronegativity of all reactive elements, second only to fluorine.

Answer 2

Answer:

At standard temperature and pressure (STP), two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O2.

Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element. As such, it readily forms compounds (notably oxides) with almost all other elements