what are molecules?
a group of atoms bonded together
what do molecules represent?
the smallest part of a chemical compound that can take part in a chemical reaction
what do molecules consist of?
two or more atoms
do atoms in a molecule have to be the same or different?
either or
what is a compound?
a chemical substance formed when 2 or more different elements bond together
what are chemical bonds?
the result of electrons sharing or exchanging among atoms
what is the smallest unbreakable unit of a compound called?
a molecule
what happens when an element loses its chemical property?
the compound has new properties