Atoms, Elements and the Periodic Table
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| anything that has mass and takes up space | matter
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| a small particle that makes up most types of matter | atom
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| a law that states that matter is not created or destroyed - it only changes form | law of conservation of matter
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| negatively charged particles in an atom | electrons
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| scientist credited with discovering the electron | J.J. Thomson
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| positively charged central part of the atom | nucleus
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| particles in the nucleus with a positive charge | protons
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| particles in the nucleus with no charge | neutrons
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| matter made of only one kind of atom | element
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| atoms of the same element that have different numbers of neutrons | isotopes
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| the number of protons plus the number of neutrons | mass number
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| the weighted average mass of the isotopes of an element | atomic mass
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| kinds of elements that generally have shiny, or metallic luster | metals
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| elements that are usually dull in appearance | nonmetals
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| elements that have characteristics of metals and nonmetals | metalloids
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| matter that has the same composition and properties throughout is called a | substance
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| a substance whose smallest unit is made up of atoms of more than one element bonded together | compound
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| two or more substances that together but don't combine to make a new substance | mixture
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| a mixture that is the same throughout | homogeneous
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| a mixture that has larger parts that are different from each other | heterogenous
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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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Created by:
mrsgrom
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