Test your knowledge
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 nucleus of an atom contains . . . | protons and neutrons
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| The atomic number of an element tells you the atom's | number of protons
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| The most common element in the universe is | hydrogen
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| Electrons... | move around outside the nucleus
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| One kind of uranium atom has 92 protons and 143 neutrons. Another atom of uranium has 92 protons and 146 neutrons. The two uranium atoms are different... | isotopes
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| Mg2+ is a magnesium ion that has | two fewer electrons than a neutral magnesium
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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:
mrstlang
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