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A chemical formula is composed of ___.
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
particle in the nucleus of an atom
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
A mixture can contain which of the following kinds of matter?
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
the lightest of the three main particles found in an atom
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
The particle that is negatively charged in an atom is the ____.
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
An atom is composed of___.
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
All known elements are organized on the periodic table ___.
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
particle in the nucleus of an atom
electron
electron
all of the above
protons, neutrons, and electrons
according to the number of protons in an atom of the element
chemical symbols and numbers of atoms
proton
neutron
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