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Description
Flashcards by michelegasparro1, updated more than 1 year ago
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Created by michelegasparro1
almost 9 years ago
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| Question | Answer |
| What is Newlands' Law of Octaves? | Why was Newlands' work criticised? |
| How did Mendeleev order the elements? | What did Mendeleev do, that Newlands' didn't do? |
| What do the group 1 elements consist of? | As you go down the group... |
| every eighth element had similar properties. | - the groups contained elements that didn't have similar properties. - metals and non-metals were mixed up. - no gaps were left for undiscovered elements. |
| he ordered the elements in order of atomic mass. | he left gaps in order to keep elements with similar properties in the same groups. |
| alkali metals. | the elements become more reactive because the the outer electron is more easily lost because it is further from the nucleus. - the elements have lower melting/boiling points. |
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