Unit 4 Definitions
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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| Atomic Mass | Average mass of one atom of an element.
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| Periodic table | A table where periods are arrangend.
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| Chemical Symbol | 1 or 2 letter code that stands for elements.
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| Period | Row of elements in the periodic table.
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| Group | Column of elements in the periodic table.
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| Matter | The stuff that everything is made of.
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| Element | The building blocks of matter.
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| Compound | Matter made up of 2 or more elements.
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| Atom | Smallest particle an element can go.
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| Electron | Negatively charged particle outside an atom.
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| Nucleus | Structure near the center of the cell.
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| Proton | Compound or element that is the result of chemical eaction.
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| Neutron | Paticle with neutral charge.
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| Energy level | Amount of energy in a electron.
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| Isotope | Atoms with same number of neutrons in the nucleus.
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| Mass number | Sum of protons and neutrons in the nucleus.
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| Atomic number | Number of protons and neutrons in the nucleus.
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| Metal | Elements solid with a shiny surface.
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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:
Ernesto Sanchz
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