Question

can a molecule have 3 elements?

Answer 1

sure

Answer 2

e.g. HCN

Answer 3

there is this simple question that it is kinda tricky for me idk why. so there is two pictures and it says choose one that represents a molecule. one of them has 4 atoms from three different elements bonded together (3 different colors), and the other one has a plethora of atoms from two different elements bonded together (2 different colors) looking like a cube. what do you think?

Answer 4

the one that looks like a cube is actually not a molecule, it's held together by ionic bonds.

Answer 5

like NaCl

Answer 6

thank you! is that true every time?

Answer 7

there are some exceptions, like diamond.

Answer 8

and how do I know that it is not a molecule next time?

Answer 9

lattices aren't molecules, so you generalize that.

Answer 10

gotcha

Answer 11

is \[Al(NO _{3})_{3} \] an ionic compound?