Question

Which statement about atoms and molecules is

Answer 1

Elements always exist as pair of atoms called molecules .

Explanation:-

• The material which has only one types of similar atoms called element .
• Ex:-Sodium,Carbon etc

Answer 2

Answer:

Elements always exists as pairs of atoms called molecules

Explanation:

• Elements are simply substances in its pure form.
• The atom of an element is simply referring to a single element. eg we have sodium atom as Na, it appears singly and in its pure form
• A molecule then refers to when an atom of the same element is paired up. i.e not in a single state. eg, we have one atom of hydrogen molecule as H2, Oxygen molecule as O2.
• Note. the molecular elements appear in pairs while the atomic elements appear singly.