mendeleevs periodic table\/

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13 Terms

1
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in order of increasing **relative atomic mass**
how were the elements arranged
2
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the mean mass of all the different isotopes in an element
what is relative atomic mass
3
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elements with similar properties were below each other in groups
how did the properties impact the way the elements were ordered
4
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by using the chemical and physical properties of of the elements next to the gap
how did he predict the elements
5
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iodine has a lower atomic mass so it should have been before tellurium but as it had similar chemical properties to chlorine and bromine he swapped iodine and tellurium. also because of the existance of isotopes
why was iodine and tellurium swapped
6
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the amount of protons in an atom
what is the atomic number
7
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atomic number
what is the periodic table arragnged in now
8
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periods
what are the horizontal rows called
9
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groups
what are the verticle collums called
10
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they have similar properties
what do the groups have in common
11
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on the left
where are metals found
12
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on thr right
where are non metals found
13
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it is an atom of an element with the same amount of protons and electrons but different number of neutrons
what are isotopes