Science 10 - The periodic table + subatomic particles

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Last updated 5:36 AM on 10/4/26
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12 Terms

1
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the periodic table is an arrangement of all the known ________

ordered by the __________

  • chemical elements

  • atomic number


2
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what is an element?

  • a pure substance, contains only 1 kind of atom


3
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how many elements are there?

  • 118 known elements

  • 94 naturally occuring


4
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elements can be combined to form ______

  • compounds


5
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what are the 2 types of compounds?

  • ionic

  • covalent


6
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each row is called a ___

  • period


7
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each column is called a ____ or _____

  • group

  • family


8
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metals are found to the ___

  • left of the staircase


9
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non metals are found to the _____

  • right of the staircase


10
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the staircase is made up of ____

  • metalloids (elements w/properties of both non n metal)


11
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4 important family groups

  • alkali metals

  • alkaline earth metals

  • halogens

  • nobel gases


12
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the 3 subatomic particles?

  • proton

  • neutron

  • electron