Atomic & Mass Number Flashcards
1
Q
What is the atomic number
A
The number of protons/electrons
Sometimes called the proton number
(On the bottom)
2
Q
What is the mass number
A
The number of protons plus the number of neutrons
Usually on the top
3
Q
How do you find out the number of neutrons
A
Mass number - atomic number
4
Q
What are isotopes
A
Different atomic forms of the same element which have the same number of protons but different numbers of neutrons
5
Q
How do isotopes react compared to their element
A
They react exactly the same because the number of electrons are the same and only electrons are involved in chemical reactions
