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10 Cards in this Set
- Front
- Back
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who was the "father of the peridoic table of the elements
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Dimitri mendeleve
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what is an element
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any substance that can not be broken down into another substance
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what are two ways the pte is orginized.
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1. by atomic number
2. all elements with the same propertes are in the same collum. |
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what pecis of information do you know about an element from looking at the element box.
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atomic number, what the element is (kr) krypton the atomic mass. number of protons and the number of electrons.
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how do you find the number of newtrons
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mass subtracted from the atomic number.
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how mant collums or family's are on the pte
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18
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how many pirods are there?
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seven
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what are the two rows that are seprete on the bottem called?
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the lanthenides and actinides
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why are the lanthinides and anthinides broken out?
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becuse there would be to many elements in one collum.
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why are the elements in collums
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beckuse they are orginised by there similarity's
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