Ch 2 FAP Flashcards
1
Q
Protons
A
Positively charged subatomic particle has 1 mass unit
2
Q
Neutrons
A
Neutral not charged subatomic particles has 1 mass unit
3
Q
Eletrons
A
Negatively charged subatomic particle outside the nucleus has less than 1 mass unit
4
Q
Atomic number
A
Number of protons
5
Q
Nucleus of atom
A
Contains protons and neutrons
6
Q
Electron cloud
A
Spherical area that contains electrons
7
Q
Electron shell
A
2d rep of electron cloud
8
Q
Element
A
Is a pure substance composed of atoms of one kinds
