History of 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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| A repeating pattern | periodic
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| How did Mendeleev arrange the elements in his first published periodic table | Vertical
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| How is the atomic mass of each element indicated in Mendeleev's 1st periodic table | By the number following the elements symbol
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| In Mendeleev's early periodic tables how were the unknown elements indicated | by a dash
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| How did Mendeleev arrange the elements in the first table | Similar properties were grouped together
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| What 3 elements were missing from Mendeleev's table but were later discovered | scandium- Sc, gallium- Ga, and germanium- Ge
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| What did Moseley work lead to | The Modern definition of atomic number and the recognition that atomic number(number of protons) NOT atomic mass is the basis for the organization of the periodic table
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| The physical and chemical properties of the elements are periodic functions of their atomic numbers | Periodic Law
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| The bold stair step line on the periodic table separates | Metals on the left from Non-Metals on the right
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| Johann Dobereiner | Dobereiner's triads groups of 3 elements with similar properties
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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:
IcanDance
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