Atoms and the Periodic Table
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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| Atom | The smallest unit of an element that maintains the properties of that element.
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| Electron | A subatomic particle that has a negative charge.
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| Nucleus | In physical science, an atom's central region, which is made up of protons and neutrons.
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| Proton | A subatomic particle that has a positive charge and that is located in the nucleus of am atom; the number of protons in the nucleus it the atomic number, which determines the identity of the element.
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| Neutron | A subatomic particle that has no charge and that is located in the nucleus of an atom.
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| Electron Cloud | A region around the nucleus of an atom where electrons are likely to be found.
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| Atomic Number | The number of protons in the nucleus of an toms: the atomic number is the same for all the atoms of an element.
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| Mass Number | The sum of the numbers of protons and neutrons in the nucleus of an atom.
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| Periodic Table | An arrangement of the elements in order of their atomic number such that elements with similar properties fall in the same column or group.
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| Chemical Symbol | A one-, two-, or three-letter abbreviation of the name of an element.
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| Average Atomic Mass | The weighted average of the masses of all naturally occurring isotopes of an element.
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| Metal | An element that is shiny and conducts heat and electricity well.
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| Nonmetal | An element that conducts heat and electricity poorly.
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| Metalloid | An element that has properties of both metals and non metals.
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| Group | A vertical column of elements in the periodic table; elements in a group share the same chemical properties.
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| Period | In chemistry, a horizontal row of elements in the periodic table.
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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:
18kmenning1211
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