atoms, elements and compounds Flashcards
(6 cards)
1
Q
what is a mixture?
A
different substances that are not chemically joined together
2
Q
what is a molecule?
A
2 or more of the same atoms bonded together
3
Q
what is a compound?
A
2 or more different types of atoms chemically joined together
4
Q
what is a element?
A
made of one type of atom
5
Q
what is a atom?
A
a tiny particle made up of elements
6
Q
what is the number of protons, electrons and neutrons in
Al
27=mass number
13=atomic number
A
protons=13
electron=13
neutrons=14
