Vocabulary
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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| Proton | A particle in the space inside the nucleus of an atom, which carries one unit of a positive electric charge.
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| Electron | A particle in space outside the nucleus of an atom that carries one unit of negative electric charge.
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| Atomic number | The number of protons in an atom.
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| Molecule | A particle that contains more one atom joined together.
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| Nonmetal | An element that is a poor conductor of heat and electricity.
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| Noble gasses | The nonmentallic elements helium, neon, argon, krypton, xenon, and radon.
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| Metalloids | A very small group of elements that have some properties of the metals and some nonmetals.
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| Periodic table | An arrangement of all the known elements in a chart of rows and columns of increasing atomic numbers.
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| Metal | A substance that conducts heat and electricity well.
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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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