1. What are these two atoms of carbon called?

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Presentation transcript:

1. What are these two atoms of carbon called? ISOTOPES

2. What is the same about these three atoms? SAME NUMBER OF PROTONS BECAUSE THEY ARE THE SAME ELEMENT

Here are three isotopes of an element: 612C 613C 614C 3. The element is: CARBON

612C 613C 614C 4. The number 6 is the number of ______________. PROTONS

612C 613C 614C 5. The 12, 13 & 14 are the ____________ of the different atoms. MASSES

612C 613C 614C 6. How many neutrons are in the last isotope? 14-6=8

7. The same element MUST have the same number of A protons B neutrons C electrons

The average atomic mass of Calcium is 40.08 amu. 8. What is the mass of the most common isotope of Calcium? 40 amu Calcium-40 is the most common isotope

9. What element does this picture represent? BERYLLIUM 4 ELECTRONS MEANS 4 PROTONS

An isotope of Fluorine has a mass of 19 amu and an atomic number of 9. 10a. How many protons does Flourine have? 9 10b. How many neutrons are in this isotope? 19-9=10