Students will learn about isotopes, including how to write and interpret isotopic notation.

Be sure to watch the videos and take your notes.

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Isotopes: Part 1

Part 1 of Isotopes. Be sure to watch both videos

Source: Langhans and various educators

Isotopes: Part 2

Here is Part 2

Source: Langhans and various educators

Isotopes: These are the “S” in WSQ. You must have them under your video notes completed by the due date on the Unit Plan.

1.What does the number next to isotopes signify?  

2.How can you tell isotopes apart

3. Here are three isotopes of an element:            Carbon-12          Carbon-13              Carbon-14                                                                     

a. The element is: __________________
b. The atomic number is the _________________________
c. The numbers 12, 13, and 14 refer to the ________________________
d. How many protons and neutrons are in the first isotope?  _________________
e. How many protons and neutrons are in the second isotope?  _________________
f. How many protons and neutrons are in the third isotope?  _________________

4.  Which element contains the largest number of neutrons per atom?

a.  Bismuth-210    b.  Polonium-210       c.  Astatine-210         d.  Astatine-211

Source: various educators and Langhans

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Source: inspired by C. Kirch