ch.1
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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| Chemistry | the study of matter
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| atom | the fundamental unit of all mater; composed of protons, neutrons, and electrons
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| protons | one of the three fundamental particles that make atoms. It has an atomic mass of 1 and carries a positive charge
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| neutrons | one of the three fundamental particles that make up atoms. It has an atomic mass of 1 and carries no charge
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| electrons | one of the three fundamental particles that make up atoms; has almost no mass compared to protrons and neutrons, and it carries a negative charge; electrons form the bonds between atoms in molecules
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| nucleus | the central portion of an atom that houses the protons and neutrons
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| electron cloud | the space that surrounds the nucleus of an atom and houses the electrons
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| helium | the second element in the periodic table. It has two protons, two neutrons, and two electrons. one of the noble gases.
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| elements | one of more than 100 fundamental units that make up matter
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| periodic table of elements | a chart categorizing all of the chemical elements
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| atomic number | the number of protons in an atom's nucleus; in the periodic table it appears in the upper left-hand corner near the atomic symbol for the element
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| atomic weight | the combined weight of an atom's protons and neutrons; in the periodic table, it is found below the symbol for the element
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| carbon | the 6th element on the periodic table with 6 protons, 6 neutrons, and 6 electrons; has the symbol C
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| Oxygen | the 8th element in the periodic table; has the symbol O and has 8 protons, 8 electrons, and 8 neutrons
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| hydrogen | the 1st element in the periodic table with the symbol H; It has only 1 proton, 1 electron, no neutrons
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| sodium | 11th element on the periodic table w/ the symbol NA. It has 11 protons, 11electrons, 12 neutrons. Sodium is alkali metal and combines with chlorine to make sodium chloride (table salt)
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| alkali metals | the group of elements in the far left-hand column of the periodic table
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| noble gases | the group of elements on the far right-hand side of the periodic table. These elements do no react easily with other elements.
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| uranium | element #92 in the periodic table w/ the chemical symbol U. uranium has 92 protons, 92 electrons, and 146 neutrons
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| gold | #79 on the periodic table of elements w/ the symbol AU. Gold has 79 protons, 79 electrons,& 118 neutrons
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| Lead | #82 on the periodic table of elements w/ the symbol Pb; has 82 protons, 82 electrons, 125 neutrons
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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.
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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:
erikamuhammad
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