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.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."

that is wrong, its not thymus.