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dickson study guide

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QuestionAnswer
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
Created by: freemjad3903