if each example represents three different atoms, which of the following would represent an element and why?

Question

a. circle, square, triangle.
b. square, square, triangle.
c. triangle, triangle, triangle.
d. circle, circle, triangle, square.
pleasee help!!!!!!!

Answer 1

C Triangle Triangle Triangle.
An element cannot be a combination or compound. It can only exist purely as an element.

i.e H20 (water) is a compound of Hydrogen and Oxygen

H2 Hydrogen and 02 Oxygen are both elements and when combined create the above compound.

Answer 2

C an element is a basic building block, so it has only one ingredient. The others are mixtures.