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18 Cards in this Set
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8th grade Science
1st six weeks periodic table test |
study hard!!
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There are ________ metals than nonmetals on the periodic table
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MORE
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Elements on the LEFT side of the periodic table
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METALS
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Total number of protons in the nucleus of one atom of an element
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ATOMIC NUMBER
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Each square on the periodic table contains________
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NAME, SYMBOL, ATOMIC NUMBER, ATOMIC MASS
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The three classifications of elements on the periodic table are:
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METALS, NONMETALS, METALLOIDS
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Columns on the periodic table are called
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GROUPS
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Rows on the Periodic Table are called:
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PERIODS
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Elements on the RIGHT side of the periodic table
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NON-METALS
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What divides the metals from nonmetals?
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ZIG ZAG LINE
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What does the zig-zag line help you identify?
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WHERE THE METALLOIDS, METALS AND NONMETALS ARE
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Why are lathanides and actinides at the bottom of the periodic table?
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TO KEEP THE TABLE FROM BEING TOO WIDE
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What is Mercury's state, at room temperature?
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LIQUID
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What are Valence Electrons?
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ELECTRONS IN THE OUTERMOST ENERGY SHELL
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How many valence electrons do elements in Group 2 have?
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2
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How many valence electrons do elements in Group 13 have?
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3
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Helium (Atomic Number: 2) is in which Group? Which Period?
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GROUP 18 - Noble Gasses
PERIOD 1 |
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Elements right next to the zig-zag line are called_______
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METALLOIDS
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