Unit 12 Atoms Notes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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The smallest part of an element that is still that element | atom
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They are very small | atoms
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They do not change in chemical reaction | atoms
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A positively charged atomic particle | proton
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A negatively charged atomic particle | electron
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A neutral atomic particle | neutron
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Neither positively nor negatively charged | neutral
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They contain protons, electrons and neutrons | atoms
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Like electrical charges | repel each other
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Unlike electrical charges | attract each other
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The number of protons in each atom of that element | The atomic number of an element
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The atomic number of an element | the number of protons in each atom of that element
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It has the same number of protons and electrons | an atom
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The center of an atom | nucleus
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A pat that electrons follow around the nucleus | orbit
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The total number of protons adn neutrons in an atoms nucleus; also called atomic weight | atomic mass
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These things are in the nucleus of an atom | protons and neutrons
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These things move in orbits or shells around the nucleus | electrons
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The number of protons and neutrons in an atom | atomic mass
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Atomic mass - atomic numbers = | the number of neutrons
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All of the elctrons orbits or paths | electron shell
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These are found in shells around the nucleus of an atom | electrons
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It can only hold a certain number of electrons | an electron shell
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It has 8 electrons except for the K shell, which has 2 | a complete outer shell
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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