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What does the number 91 represent in the name zirconium-91?
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
Isotopes of the same element have different
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
Identify the element that has 31 neutrons and a mass of 59.
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
An element has an atomic number of 72. The number of protons and electrons in a neutral atom of this element is
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
An atom has an atomic number of 32 and a mass number of 73. How many protons, neutrons, and electrons does this atom contain?
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
All atoms of the same element have the same
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
The smallest particle of an element that retains the properties of that element is a(n)
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
What makes an atom electrically neutral?
The number of protons is equal to the number of electrons.
masses.
the mass number
32 protons, 41 neutrons, 32 electrons
nickel
72 protons and 72 electrons
atom
number of protons.
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