3. Atomic Structure Flashcards
1
Q
Describes an atom
A
An atom is the smallest particle that can still have the chemical characteristic of an element
2
Q
The 3 main sub-atomic particles
A
- Protons carries a positive charge
- Neutrons neutral particles with 0 charge
- Electrons carry a negative charge
3
Q
What is a proton number?
A
A proton number is the number of protons in its nucleus
4
Q
What is a nucleon number
A
The nucleon number is the total number of protons and neutrons in the nucleus
5
Q
What is an ion?
A
An ion is the particles formed when an atom or group of atoms gains or loses electrons
6
Q
What is an isotope?
A
Isotopes are atoms of the same element that have the same proton number but different nucleon number
7
Q
A
