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The number of protons in one atom of an element is that element’s
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
Democritus thought that matter was made of tiny particles
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
Which statement is true about oxygen-17 and oxygen-18?
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
To find the number of neutrons in an atom, you would subtract
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
According to John Dalton’s observations, when elements combine in a compound,
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
Which of the following is unique for any given element?
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
J.J. Thomson’s experiments provided evidence that an atom
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
In an atomic model that includes a nucleus, positive charge is
the number of protons
has a negative charge.
concentrated in the center of an atom.
atomic number.
that could not be divided.
They are isotopes of oxygen.
the ratio of their masses is always the same.
atomic number from mass number
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