Which of an atom's electrons are involved in chemical reactions? ANSWER: D

A. The electrons that make one isotope different from another

B. The electrons closest to the nucleus of the atom

C. The electrons that determine the atomic number of the atom

D. The electrons farthest from the nucleus of the atom

D.

Explanation:

The electrons farthest from the nucleus of the atom

answer: the figure is attached herewith.

step-by-step explanation:   we are given to sketch a unit circle and label the terminal points corresponding to

in the attached figure, we have drawn a unit circle, with centre at o(0,0) and radius 1 unit. we have labelled the points a, b, c, d and e corresponding to the angles below

∠aox = 60°,

∠box = 120°,

∠cox = 180°,

∠dox = 240°,

∠eox = 300°.

and the coordinates are a(0.5,1), b(-0.5,1), c(-1,0), d(-0.5,-1) and e(0.5,-1).

thus, the answer is complete.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.