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physics
chapter 17 Q & A
| Question | Answer |
|---|---|
| What do protons in an atom attract? | electrons. |
| What is the size of an atom mostly determined by? | electrons |
| What is Brownian motion result from? | random motions os atoms and molecules. |
| what is plasma make up? | mixture of ions and electrons, electrically charged. It is a phase of matter. |
| what is an ion? | an atom with a different # of electrons and protons. |
| What is an isotope? | an atom that has one more or less neutron than protons in the nucleus. |
| In the shell model of an atom where are the electons? | in the shells |
| what are the phases of matter? | plasma, solids, liquids, and gases. |
| where did the atoms formed in our bodies originally come from? | atoms came from stars and fron other matter prior to our existenc. |
| what determinds the size of the atom | the number of electrons. |
| What determinds the size of the atom? | the number of atoms |
| What makes up an element? | the sanm kind of atons |
| how many elements do we know about? | slightly more than a hundered |
Created by:
14_hbentrup
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