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Proton/Electron
Flash cards about the Elements.
| Question | Answer |
|---|---|
| How many protons does the element Oxygen have? | Eight. |
| How do you calculate how many neutrons there are in each atom? | You subtract the atomic number from the average atomic mass. (Ex. C (Carbon); you would take the Average Atomic Mass (12) and the atomic number (6) and subtract both of them, you will find out that there are 6 neutrons in the atom Carbon.) |
| What is a shorter way to say an element? | This is called the "Element Symbol". |
| Where did they come up with the Element symbol for the Element? (Ex. Na (Sodium)) | It comes from the Greek or Latin of the Element's name. |
| Why are some of the atomic masses in parentheses? (Ex. Polonium (209)) | If the number is in parentheses, then it refers to the atomic mass of the most stable isotope. |
| How many protons does the element Iron (Fe) have? | twenty-six. |
| Why isn't the Element Symbol for Iron (Fe) not Ir? | (Fe) is the Greek or Latin term for Iron. |
| Average Atomic Mass for Sodium (Na)? | 22.99. |
| Mass number for Nickel (Ni)? | 58.69---->59. |
| What is a proton? | A stable subatomic particle occuring in all atomic nuclei , with a positive electric charge equal in magnitude to that of an electron, but of opposite sign. |
| True or False. Does an electron have a positive charge? | False. It has a negative charge. |
Created by:
rebekahmcmahon
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