Chem 2

michelegasparro1
Flashcards by michelegasparro1, updated more than 1 year ago
michelegasparro1
Created by michelegasparro1 about 5 years ago
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Second apadtation

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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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