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12 Cards in this Set
- Front
- Back
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How many periods does the modern periodic table have?
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Modern periodic table has 7 periods and 18 groups
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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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What do all nonmetals have in common?
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•Poor conductors of heat and electricity
•Low boiling and heating points •Combine with other nonmetals to form covalent |
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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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How many protons does Boron have?
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Boron has five protons.
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How many grams are in 4 kilograms if 1 kilogram = 1000 grams?
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4000 grams
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Which of the following elements is a metalloid?
a. copper b. indium c. silicon d. carbon |
C.Silicon(Si)
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What is a cation?
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A positively charged;one that would be attracted to the cathode in electrolysis.
A cation is a positively charged ion (A good way to remember this is, A Cation has a t in it, like a +; keep that in mind if you have trouble remembering which is a cation or a anion) |
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How many meters are in a hectometer?
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1 hectometer = 100 meters or the other way around
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What is the octet rule?
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8 Valence electrons!!!
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Elements that have the same number of valence electrons are
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Elements with the same number of valence electrons will be in the same group/family
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In a modern periodic table, elements are arranged in order of?
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The modern table orders the elements by increasing atomic number.
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