Atomic Structure Flashcards
1
Q
The smallest unit of an element
A
Atom
2
Q
A subatomic particle with a negative charge
A
Electron
3
Q
Center of an atom contains protons and neutrons
A
Nucleus
4
Q
Area around the nucleus contains neutrons
A
Electron cloud
5
Q
Subatomic particle with positive charge
A
Proton
6
Q
A sum of protons and neutrons
A
Mass number
7
Q
Number of protons
A
Atomic number