Warm-Up We have a name for atoms with a charge, what is it?

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Presentation transcript:

Warm-Up We have a name for atoms with a charge, what is it? One of the three subatomic particles changes in number, which one is it?

Review Atomic Number: Gives us the number of Protons Which value is the atomic number? Atomic Mass: Sum of the #p+ and #n #n = Atomic Mass – Atomic Number #e- = #p+ - charge What happens when we have a negative charge

Charged Atoms Charged atoms are called IONS Change in the number of electrons Now we are going to learn about another special case of atoms…

Isotopes Isotope Video

What Are Isotopes? Atoms with the same number of protons, but different numbers of neutrons. Atoms of the same element (same atomic number) with different atomic masses. Isotopes of Chlorine 35Cl 37Cl 17 17 chlorine - 35 chlorine - 37

Learning Check Naturally occurring carbon consists of three isotopes, C-12, C-13, and C-14. State the number of protons, neutrons, and electrons in each of these carbon atoms. 12C 13C 14C 6 6 6 #p _______ _______ _______ #n _______ _______ _______ #e _______ _______ _______

Lab Pick a partner One of you will come get a lab procedure DO NOT WRITE ON THE LAB PROCEDURE You will EACH need to write down the answers of the lab and turn in a report.