FUN 1 EO: 1.1 - Radiation Protection Tech.

FUN 1 EO: 1.1

1 / 18

What is the mass defect (Δm)?

The sum of the masses of the protons and neutrons

The mass of the protons in an atom

The mass of the electrons in an atom

The difference in mass between the total mass of the nuclide and the total mass of the individual particles

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What defines isotopes of an element?

Different atomic numbers and different atomic weights

Different atomic numbers, but same atomic weights

Same atomic number and same atomic weights

Same atomic number, but different atomic weights

3 / 18

Which elementary particle located in the atom's nucleus has no electrostatic charge?

Neutron

Proton

Positron

Electron

4 / 18

What is the mass of a neutron?

1/1838 that of a proton

1.6747 x 10^-24 grams

1.6605 x 10^-24 grams

1.6724 x 10^-24 grams

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What is the isotopic abundance?

The number of isotopes in an element

The abundance of a given element's isotopes in a normal mixture

The amount of energy released during fission

The atomic mass number of an isotope

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What does the term "isotopes" refer to?

Atoms that have different numbers of protons and neutrons

Atoms that have the same number of electrons, but different protons

Atoms that have the same atomic weight, but different atomic numbers

Atoms that have the same atomic number, but different atomic weights

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How is the binding energy per nucleon calculated?

BE - A

BE + A

BE/A

BE * A

8 / 18

How is the binding energy of a nucleus related to its mass defect?

It is the mass of the nucleus minus the mass defect

It has no relationship to the mass defect

It is the energy equivalent in units of MeV of its mass defect

It is the energy required to form the mass defect

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Which expression correctly calculates the number of neutrons in a given nucleus?

Z + A

A - Z

A + Z

Z - A

10 / 18

In a neutral atom, how does the number of protons compare to the number of electrons?

There are more protons

The relationship varies

There are more electrons

They are equal

11 / 18

What does the atomic mass number (A) represent?

The sum of the number of protons and neutrons in the nucleus

The total number of protons in the nucleus

The sum of the number of protons and electrons

The number of electrons in the atom

12 / 18

What is the atomic mass unit (AMU) equivalent to?

1/12 the mass of a carbon 12 nucleus

1/24 the mass of a carbon 12 nucleus

1/18 the mass of a carbon 12 nucleus

1/6 the mass of a carbon 12 nucleus

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Which shell has a maximum total of 50 electrons?

2 (L) shell

5 (O) shell

4 (N) shell

3 (M) shell

14 / 18

What is the maximum number of electrons that can be contained in the N shell?

15 / 18

What is the atomic mass of a proton in grams?

1.6724 x 10^-24

1.6747 x 10^-24

1.6838 x 10^-24

1.6605 x 10^-24

16 / 18

What are the three basic particles that make up an atom?

Proton, Neutron, Electron

Proton, Neutron, Positron

Neutron, Electron, Positron

Proton, Electron, Positron

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In the mass-energy equivalence formula, what does the symbol "E" represent?

Electron structure

Energy level of a shell

Energy

Excited state of an atom

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Which equation represents mass-energy equivalence as discovered by Einstein?

E = mc/2

E = 2mc^2

E = mc

E = mc^2

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