Atomic And Mass Numbers Flashcards
1
Q
Which number top or bottom is the mass number for elements?
A
Top
2
Q
Which number (top or bottom) is the atomic number?
A
Bottom
3
Q
How do you work out the number of protons of an element
A
The atomic number (bottom) is also the number of protons
4
Q
How do you work out the number of electrons of an element
A
The number of electrons is the atomic number
5
Q
How do you work out the number of neutrons of an element
A
Mass number (top) minus atomic number (bottom)