2. Give an example of
(a) diatomic element
(b) polyatomic element​

I hope it helps. Kindly mark it as the brainliest and thank, please.

(a) Diatomic Element :-

Diatomic elements are pure elements that form molecules consisting of two atoms bonded together. There are seven diatomic elements: hydrogen, nitrogen, oxygen, fluorine, chlorine, iodine, bromine.

(b) Polyatomic Element​ :-

Any molecule that contains more than 2 atoms is polyatomic. So that would be ozone (O3), etc. Anything that consists of two or more atoms is called molecular.

Explanation:

(a) Diatomic Element :-

For example, oxygen can exist as the triatomic molecule, ozone.

(b) Polyatomic Element​ :-

For example oxygen (O2), nitrogen (N2), ozone (O3), carbon dioxide (CO2), methane (CH4), benzene (C6H6), and way bigger like rotaxane or proteins or polymers.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

the answer is false?