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Stack #50193

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All matter is made of ... atoms
Atoms are ... the smallest form of elements.
The word element is related to elementary or ... basic
Atoms are the basic building blocks of ordinary ... matter
Atoms can join together to form ... molecules
Atoms are composed of particles called ... protons, electrons and neutrons.
... carry a positive electrical charge Protons
...carry a negative electrical charge Electrons
... carry no electrical charge at all. Neutrons
The protons and neutrons cluster together in the central part of the atom called the ... nucleus
The __ contains most of an atom's mass. nucleus
What is the most common element in the universe? hydrogen
Which part of the atom has a negative charge? Electron
The overall charge of the nucleus is ... positive
What is an element? An element is a substance that is made entirely from one type of atom.
Different versions of the same element are called isotopes. isotopes
All isotopes of a particular element have the same number of protons, but have a different number of neutrons.
If you change the number of neutrons an atom has, what do you make? Isotopes
True or False. The atomic number is equal to the number of protons in an atom's nucleus. True
The __ determines which element an atom is. atomic number
Created by: msrichardson
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