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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| Dobereiner's Triads | Groups of three elements with similar chemical properties where the atomic mass of the middle element is approximately equal to the average of the other two
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| Newland's Octaves | Arrangements of elements in which the first and eighth element counting from a particular element have similar properties
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| Mendeleev's Periodic Law | When elements are arranged in order of increasing atomic mass the properties of elements occur periodically
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| Mendeleev's Periodic Table | Elements of similar properties in columns
Left Gaps
Predicted Properties
Reversed Order of Some Elements
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| Henry Moseley | Discovered using X-rays method of determining number of protons
Not necessary to reverse order
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| Modern Table | Increasing atomic number
Over 100 elements
No gaps
Transition elements are seperate
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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:
JackEatonK98
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