Atomic Structure Flashcards
1
Q
Atom:
A
Smallest unit of an element
2
Q
Proton:
A
Positively charged particle in nucleus
3
Q
Neutron:
A
Neutral particle in nucleus
4
Q
Electron:
A
Negatively charged particle orbiting nucleus
5
Q
Atomic number: Number of protons in an atom
A
Number of protons in an atom
6
Q
Mass number:
A
Total number of protons and neutrons
7
Q
Isotope:
A
Atoms of same element with different neutron numbers
8
Q
Electronic configuration:
A
Arrangement of electrons around nucleus
