1. Warm-up: Complete the following table
Nuclear Symbol
Atomic Number
Atomic Mass
# P
# N
# E 24 22
___Br-
79.904 35 80 81 20

2. Isotope Notes
Tuesday, October 24th, 2017

3. same element different masses
Isotope - Variation of a type of atom
All isotopes of an atom have the same # protons
Each isotope of an atom has different mass
Therefore,
Each isotope has a different mass #
Each isotope has a different # neutrons
same element different masses

4. Isotope Hydrogen-1 Hydrogen-2 Hydrogen-3 Atomic Number 1 Mass Number 3
# protons
# neutrons
# electrons
Nuclear Symbol

5. Examples: Atomic # Mass #p #n #e Nitrogen-12 Nitrogen-14 Sulfur-30

6. Complete "An Investigation into Isotopes"
Examples:
Atomic #
Mass #p #n #e
Nitrogen-12 7 12 5
Nitrogen-14 14
Sulfur-30 16 30
Sulfur-32 32
Complete "An Investigation into Isotopes"