chemistry easy basic words help?

Question

What is different between element and atom?
what is the different between molecule and compound?
what is phase?
thank you for reading
if you use it with easy words, then you get the best answer but very detailed but short answer to understand

Answer 1

An element is a substance that can not be furthe broken down by ordinary chemical means. AN atom is the smallest size unit of an element.

Example, Iron (Fe)

A compound is made from more than one element. A molecule is the smallest unit of a compound.

Example, water (H2O)