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______ contain(s) only one kind of atom.
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
An electron
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
A neutron
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
The atomic number of an isotope is the number of ______.
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
Elements that can be pounded into thin sheets are
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
A proton
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
In the modern periodic table (ours) the elements are arranging in order of increasing
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
How many valence electrons does Krypton have?
8
is a positive particle in the nucleus of the atom
atomic number
is a negative particle in the electron cloud of the atom
is a neutral particle in the nucleus of the atom
protons
metals
Elements
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