Atom Vocab And Probably Study Guide Flashcards
1
Q
Smallest unit of an element that maintains the properties of that changes
A
Atom
2
Q
A substance particle that has a negative charge
A
Electron
3
Q
Atom’s central region made up of neutrons and protons
A
Nucleus
4
Q
Subatomic particle that has a positive charge, located in a nucleus
A
Proton
5
Q
Subatomic particle that has no charge, in the nucleus of a atom
A
Neutron
6
Q
Region around nucleus where electron are usually found
A
Electron cloud
7
Q
Number of protons in a atop
A
Atomic number
8
Q
The sum of the number of protons and neutrons in a atom!
A
Mass number
