chemistry stack
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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| Metals | usually shiny and can be formed into shapes (malleable). They are good conductors of electricity.
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| Nonmetals | most have the properties opposite of metals. Nonmetals are dull and cannot be shaped.
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| Semimetals | have some properties of both metals and nonmetals.Some semimetals are shiny but cannot be shaped.
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| Noble Gases | elements that do not combine easily with other elements.
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| Element | made of one kind of atom. It can't be broken down during a chemical reaction. It combines with other elements to form compounds.
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| Symbol | the abbreviation for the element. Always a capital letter, or a capital and a lower case.
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| Atomic mass | decimal number below the symbol.
It is the mass of the protons and neutrons in an element
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| Atomic number | located above the symbol
Tells the number of protons in the nucleus of an atom.
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| Group | vertical column of elements on the periodic tables. These element have similar properties.
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| Period | elements in a horizontal line on the periodic table. These elements all have the same number of electron levels (valence)
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| Mass number | number of protons and neutrons in the nucleus of an atom. It is the atomic mass rounded to the nearest whole number
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| Protons | look at the atomic number
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| Electrons | same as the number of protons
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| Neutrons | take the atomic mass, and round to the nearest whole number . This gives you the mass number. Take the mass number and subtract the atomic number.
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| chemistry | The study of composition and properties of matter and how substances react with each other.
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| physical properties | color,density, state of matter at room temperature, texture, odor,shape.
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| volume | unit that measures volume or cc.
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| displacement | a method of determining the volume of an irregular object by measuring.
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| Density | the amount of matter in a space.
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| if something flots it is buoyant or has buoyancy
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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:
tuckerwhite
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