Two or more substance chemically combined in a specific ratio are called a ? compound - mixture- matter- model
compound
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20
a row on the Periodic Table of Elements? family - period - row- isotope
period
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20
Two or more elements, compounds or substances that are mixed together, but not chemically combined are called? compound - mixtures - matter - models
mixtures
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20
Most of the elements on the periodic table are classified as _____. Metals - Nonmetals- Metalloids -Periods
Metals
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20
Anything that has mass and occupies space is? nucleus- protons - matter- model
matter
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lifesaver
Give 15 points!
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gift
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fairy
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5
10
15
20
25
baam
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seesaw
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gift
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rocket
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baam
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20
Which is an electron? A - B- C
A
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one or two letters that represent the name of an element ? element name -element symbol - atomic number - atomic mass
element symbol
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20
All of these properties describe metals except... ? malleable - conductors- brittle - shiny
brittle
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20
Which of the following is a good conductor of heat? Metal - Nonmetal -Metalloid
Metal
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20
The central core of an atom which contains protons and usually neutrons is called the? nucleus - protons - elements- scientific theory
nucleus
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gold
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gift
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20
These are found on the Periodic Table. ? Compounds - Elements - Mixtures
Elements
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An __________ is a substance that cannot be broken down into any other substance by chemical or physical means. (pure substance) ? nucleus - element - neutron - proton
