An element is a main constituent of paper, diamond and clothes etc. it forms covalent bonds with itself and other elements: - (1) identify the element (2) write the electron dot structure of its oxide. (3) draw the electron dot structure of methane and ethene.

Answer 1) Carbon - It is the element which is the main constituent of the paper in the form of cellulose, diamond is made of completely carbon and clothes are mostly made from carbon based fibers. Also, it forms covalent bonds with itself and other elements too because it has 4 valence electrons in its valence shell so, it can either donate or accept electrons to attain a stable octet state.

Answer 2) The electron dot structure of the oxides of carbon are of two types;

i) CO and ii)

The images are attached for the electron dot structures.

Answer 3) The structure of methane and ethene is attached in the image.

it's c. elements are placed in rows based on how may valencies electrons have.

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds