physical or chemical
is crumpling paper physical or chemical change
Physical
has a lot of kenedic energy
Gas
what charge does a proton have.
positive
what element is HE
Helium
what element is in period 1 group 1
Hydrogen
is burning fire physical or chemical change
Chemical
molecular structure vibrates
Solid
what element is salt
sodium
what element is AU
Gold
what element is in period 1 group 18
Helium
is chemical change reversible or non reversible
non reversible
molecular structure has a lot of room
Gas
what is a atom.
Basic unit of matter, smallest part of an element.
what element is O
Oxygen
what element is in period 7 group 1
Francium
is physical change reversible or non reversible
reversible
what molecular structure has some room.
Liquid
what is a element
A pure substance made of only one kind of atom.
what element is N
Nitrogen
what element is in period 4 group 10
Nickle
is roasting a marshmallow physical or chemical change
Chemical
what is Jello
Solid
what is a compound
A chemically bonded combination of 2 or more elements.
what element is AL
aluminum
what element is in period 3 group 1
sodium