Transcript Isotopes quick notes (cont`d)

(add these to your isotopes notes from TUESDAY)
ISOTOPES QUICK NOTES (CONT’D)
ISOTOPES
Fluorine-18
Element Name
Mass Number
Mass Number: total # of protons and neutrons combined
•Tells us how “heavy” the atom is.
•Fluorine-18 would be heavier than Fluorine-17
To find # neutrons in this
isotope:
Mass Number
- Atomic Number
# neutrons
This is what’s on the Periodic Table
REMEMBER!
Isotopes are just different forms of the SAME
ELEMENT!
 Fluorine-18 and Fluorine-17 ARE the same
element, just different forms… these are
isotopes.
 Isotopes

 Same
# of protons
 Same # of electrons
 DIFFERENT # of neutrons