1.2 Flashcards
(8 cards)
1
Q
element
A
a pure substance that can not be broken down into any simpler substance
2
Q
compound
A
any substance that is formed by the chemical combination of two or more elements
3
Q
atom
A
the smallest unit of an element that returns the properties of that element
4
Q
proton
A
a particle in the nucleus of an atom that carries one unit of positive electric charge
5
Q
neutron
A
a particle in the nucleus an atom that has no net electric charge
6
Q
electron
A
a particle in space out side the nucleus of an atom that carries one unit of negative charge
7
Q
nucleus
A
a dense structure inside the cell
8
Q
molecleus
A
A particle that contains more then one atom joined together
