Definations Flashcards
(4 cards)
0
Q
Structure of an element
A
Three different sub-atomic particles: protons,neutrons and electrons
1
Q
An atom
A
The smallest particle of an element which still retains the properties of that element
2
Q
Atomic number
A
The number of protons in the nucleus of an atom
3
Q
Mass number
A
Number of protons plus neutrons in an atom
