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dickson study guide
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Question | Answer |
---|---|
two or more elements chemically bonded | mixture |
two substances the are combined they do not chemically combine | heterogenius |
anything with mass that takes up space | matter |
a pure substance made of one atom | element |
any matter that is pure is called a[n] _____ | substance |
how many electrons are in gold | 72 |
which element has the symbol Li | lithium |
how many neutrons are in Xenon | 77 |
what is the atomic number used to determine | how many electrons and protons |
what particle in an atom has a negative charge | electron |
which makes up most of the mass of an atom | neutron |
pure matters are called... | elements |
which substance particle has no charge | neutrons |
most elements on the periodic table are... | solids |
elements on the stair step of the periodic table are called | metalloids |
the periodic table contains about ___ elements | 90 |
Flurine has what neutron number | 10 |
what is the atomic symbol for argon | Ar |
what is the atomic symbol for boron | Bo |
how many electrons are in iodine | 53 |
which elements atomic number is 60 | neodinium |
which element has 75 protons | Rhenium |