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6
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group 17 contains fluorine, chlorine, bromine, iodine, and astatine
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8
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an element in group 1 of the periodic table
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9
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substances that can conduct electricity under some conditons, but not under other conditions
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11
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a one-or-two-letter representation of an element
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12
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the average mass of all the isotopes of an element
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13
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a class of elements charecterized by physical properties include shininess, malleability, ductitity, and conductivity
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14
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one of the elements in group 3 through 12 of the periodic table
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16
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a chart of the elements showing the repeating pattern of their properties
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18
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soft, malleable, shiny metals with high conductivity
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20
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elements in the same vertical column of the periodic table; also called 'family'
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1
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the graduale wearing away of a metal element due toa chemical reaction
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2
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an atom with the same number of protons and a different number of neutrons from other atoms of the same element
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3
|
an element that lacks most off the properties of a metal
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4
|
elements in the same vertical column of the periodic table; also called 'group'
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5
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the central core of the atom
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7
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an element in group 2 of the periodic table
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10
|
a term used to describe a material that can be pulled out onto a long wire
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15
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a small particle in the nucleus of an atom, with no electrical charge
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17
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a horizontal row of elements in the periodic table
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19
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the basic particle from which all elements are made
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