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9 Cards in this Set
- Front
- Back
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In a modern periodic table, elements are arranged in order of?
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there aranged in the atomic #.
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How many periods does the modern periodic table have?
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there are 6 periods on the periodic table
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An element that is shiny and conducts electricity is likely to be a?
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metal
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Elements that have the same number of valence electrons are?
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groups
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the most reactive metals, which are soft and silvery-white are the:
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alkali metals
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What is the octet rule?
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where atoms loose,gain, or share electrons
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What do all nonmetals have in common?
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poor conductors. PH`s lower than 7.
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Which class on the periodic table shares properties with both metals and nonmetals?
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metalloids
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9. Using your periodic table and your knowledge of the relationship between group and number of valence electrons, how many valence electrons would Magnesium have?
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2
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