Science Lesson 5 Flashcards
1
Q
The smallest unit of an element that maintains the properties.
A
Atom
2
Q
The number protons in nucleus in an atom
A
Atomic number
3
Q
A subatomic particle that has a negative charge
A
Electron
4
Q
A subatomic particle that has a charge in a nucleus
A
Proton
5
Q
A subatomic particle that has no charge ina nucleus
A
Neutron
6
Q
Center of Adam hold’s properties and neutrons
A
Nucleus
7
Q
A region around the nucleus contains electrons
A
Electron cloud
8
Q
The sum of the numbers
A
Mass number
