atoms and molecules Flashcards
1
Q
atoms is made out of
A
protons electrons and neutrons
2
Q
what is a molecule
A
a group of 2 or more atoms chemically combined
3
Q
what is a compound
A
substance made up of 2 or more different elements
4
Q
what does it mean to be electrically neutral
A
overall charge is 0, it’s positively charged protons and negatively charged electrons are of the same no
5
Q
how to find neutron
A
mass no - proton
