Atomic Number and Mass Number Describe an Atom Flashcards
1
Q
What do these two numbers tell you?
A
How many of each kind of particle an atom has
2
Q
What is the mass number?
A
Total of protons and neutrons
3
Q
What is the atomic number?
A
Number of protons
4
Q
What will the atomic number tell you?
A
How many protons there are
5
Q
What do atoms of the same element all have?
A
The same number of protons
6
Q
Atoms of different elements will have….
A
Different numbers of protons
7
Q
How do you get the number of neutrons?
A
Subtract the atomic number from the mass number
