Section 1.8 Atoms and Isotopes Flashcards
1
Q
What are the relative masses of the subatomic particles?
A
Protons: 1
Neutrons: 1
Electrons: very small or 1/2000
2
Q
How do you calculate the number of neutrons with thee atomic number and mass number?
A
Number of neutrons = Mass number - Atomic number
3
Q
What are isotopes?
A
Isotopes are atoms of the same element with different numbers of neutrons. Isotopes of an element have the same atomic number but different mass numbers
4
Q
What is relative atomic mass?
A
The average mass of the atoms of an element compared with carbon-12 (mass = 12)
