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Which of the following is true about subatomic particles?
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
The range in size of most atomic radii is approximately _________.
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
How many protons, electrons, and neutrons does an atom with atomic number 55 and mass number 130 contain?
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
What unit is used to measure weighted average atomic mass?
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
The atomic mass of an element is the _________.
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
The total number of protons and neutrons in the nucleus of an atom is called the ___________________
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
Which of the following is necessary to calculate the atomic mass of an element?
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
How is the number of neutrons in the nucleus of an atom calculated?
the masses of each isotope of the element
The mass of a neutron nearly equals the mass of a proton.
Subtract the number of protons from the mass number.
5 x 10^-11 m to 2 x 10^-10 m
mass number
weighted average of the masses of the isotopes of the element
amu
55 protons, 55 electrons, 75 neutrons
Check it!