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lra 211 Questions and Correct Answers
The three fundamental particles of the atom are the Ans: proton,
neutron, electron
The atomic nucleus contains Ans: protons and neutrons
The component of the nucleus that has a positive charge and mass
is the Ans: protons
The component of the nucleus that has mass but no electrical
charge is the Ans: Neutron
If an atom has more electrons than protons, it will Ans: Negative
When an atom becomes negatively or positively charged it is
usually due to a change in the number of Ans: Electrons
A negative ion is Ans: has more electrons than pr
A positive ion is Ans: has more protons than electrons
If a particle strikes a nucleus with the same amount of energy as
the atom's nuclear binding energy Ans: it can split the atom
The electrons stay in orbit around the nucleus because of Ans:
Protons
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The electron binding energy is stronger when Ans: Closer to the
nucleas
The electron shell closest to the nucleus is lettered Ans: K
Electromagnetic radiation Ans: has no mass
What kind of disturbance does electromagnetic radiation NOT
cause? Ans: mechanical
Which of the following is not part of the electromagnetic
spectrum? Ans: Radio waves
When considering the wave properties of electromagnetic
radiation, the distance from the peak of one wave to the next is
Ans: Wavelength
As the wave's frequency increases, the wavelength Ans: Decreases
As a wave's wavelength increases, its frequency Ans: its frequency
increases
Wavelength is generally measured in Ans: meters
Frequency is typically measured in Ans: Hertz
The process of removing an electron from an atom isX-rays are
produced Ans: ionization
© 2025 All rights reserved
lra 211 Questions and Correct Answers
The three fundamental particles of the atom are the Ans: proton,
neutron, electron
The atomic nucleus contains Ans: protons and neutrons
The component of the nucleus that has a positive charge and mass
is the Ans: protons
The component of the nucleus that has mass but no electrical
charge is the Ans: Neutron
If an atom has more electrons than protons, it will Ans: Negative
When an atom becomes negatively or positively charged it is
usually due to a change in the number of Ans: Electrons
A negative ion is Ans: has more electrons than pr
A positive ion is Ans: has more protons than electrons
If a particle strikes a nucleus with the same amount of energy as
the atom's nuclear binding energy Ans: it can split the atom
The electrons stay in orbit around the nucleus because of Ans:
Protons
© 2025 All rights reserved
, 2 | Page
The electron binding energy is stronger when Ans: Closer to the
nucleas
The electron shell closest to the nucleus is lettered Ans: K
Electromagnetic radiation Ans: has no mass
What kind of disturbance does electromagnetic radiation NOT
cause? Ans: mechanical
Which of the following is not part of the electromagnetic
spectrum? Ans: Radio waves
When considering the wave properties of electromagnetic
radiation, the distance from the peak of one wave to the next is
Ans: Wavelength
As the wave's frequency increases, the wavelength Ans: Decreases
As a wave's wavelength increases, its frequency Ans: its frequency
increases
Wavelength is generally measured in Ans: meters
Frequency is typically measured in Ans: Hertz
The process of removing an electron from an atom isX-rays are
produced Ans: ionization
© 2025 All rights reserved
