Atoms Flashcards
1
Q
What charge does a proton have?
A
Positive charge +1
2
Q
What charge does a neutron have?
A
Neutral charge. (0)
3
Q
What charge does an electron have?
A
Negative. -1
4
Q
What does the atomic number show?
A
The number of protons
5
Q
What is the law of conservation of mass?
A
The mass of all the reactants = the mass of all the products
6
Q
Number of neutrons equation is
A
Mass number - proton number
7
Q
What is the size of an atom?
A
1 x 10 ^-10
