Question

Which of the following is a diatomic molecule?
A. Ca2-
B. N2
C. KCl
D. MgCl2

Answer 1

what does the word di-atomic mean?

Answer 2

it means consisting of two atoms.

Answer 3

not just 2 atoms, but 2 of the same atom in a molecule. only one of those choices fits that description

Answer 4

so it would be A?

Answer 5

@JFraser

Answer 6

it's not A

Answer 7

ok

Answer 8

would it be B?

Answer 9

@KeboNerd can you help me?

Answer 10

stop guessing. only one of the options is made of 2 identical atoms.

Answer 11

im not trying to guess. I dont know what any of these element things mean. I need help understanding really bad.

Answer 12

each element gets a unique symbol. only one of the options is made up of 2 identical atoms

Answer 13

well on D its Mg and Cl, witch is magnesium and chlorine. thats 2 different elements. so it must be C. But K is potassium and Cl is chlorine. So im confused.

Answer 14

i never said B was wrong, i just said stop guessing and look at each of the options

Answer 15

oh. I was and i wasn't trying to guess. (i hate guessing) But am i on the right track with my last comment?

Answer 16

both C and D have more than 1 kind of atom, so it's B

Answer 17

ok thanks!