Atoms & Elements
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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Electron | Particle with a negative electric charge
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Nucleus | The center of atom, which contains most of the atom's mass.
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Proton | A positively charged particle inside the atoms nucleus.
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Neutron | A particle with no electrical charge.
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Electron cloud | An area where electrons travel around the atoms nucleus.
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Atomic number | The number of protons in the atoms of an element.
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Average Atomic Mass | The mass of the protons and neutrons of an elements.
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Reactant | An original substance at the beginning of a chemical reaction.
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Product | The new substance produced in a chemical reaction.
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Exothermic reaction | A chemical reaction that releases energy.
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Endothermic reaction | A chemical reaction that absorbs energy.
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Rate of Reaction | The measure of how fast a chemical reaction occurs.
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Law of Conservation of Matter | A physical law that states that matter may change form but it cannot be created or destroyed.
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Element | A pure substance that can not be broken down into simpler substances.
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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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Created by:
BeckScience
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