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Periodic Table
Chemistry Stuff
| Question | Answer |
|---|---|
| Who is credited with starting the story of the periodic table? | Antoine Lavoisier |
| Name four elements discovered by Jons Jacob Berzelius. | Silicon, Selenium, Cerium and Thorium |
| In what way did he contribute to the development of the periodic table? | He labelled elements to make them easier to categorise as well as ordering them in a primitive table in relation to atomic mass. |
| How many elements did John Newlands discover and classify? | 56 |
| How did Dimitri Mendeleev contribute to the periodic table? | Produced a table of atomic weights, with periods to group shared properties as well as leaving gaps for predicted undiscovered elements. |
| What do the elements in a group have in common? | The amount of electrons in an outer shell. |
| What do the groups in a period have in common? | The amount of shells. |
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TwoDoorBicycle