AnswersCA-Chemistry AThe Nucleus

The Nucleus Answers

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Blank 1:0.10851
Blank 2:1.62
Blank 3:-11
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nuclide transfer energy✔ nuclear binding energymass-energy equivalencenuclear energy the amount of energy needed to split the nucleus into individual protons and neutrons

A
nuclide transfer energy
B
✔ nuclear binding energy
C
mass-energy equivalence
D
nuclear energy
3

mass of nucleus✔ mass defectatomic massisotopic mass the difference between the mass of the nucleons and the mass of the atom

A
mass of nucleus
B
✔ mass defect
C
atomic mass
D
isotopic mass
4

Identify the term being defined.strong electrostatic force✔ strong nuclear forcestrong centripetal forcegravitational attractions the force that keeps the nucleons bound inside the nucleus of an atom

Answers:
the force that keeps the nucleons bound inside the nucleus of an atom:strong nuclear force
the amount of energy needed to split the nucleus into individual protons and neutrons:nuclear binding energy
the difference between the mass of the nucleons and the mass of the atom:mass defect
5

Which items are directly related to radioactive decay?

A
electrostatic forces of repulsion
B
E = mc2
C
electrostatic forces of attraction
D
mass defect
6

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force? Check all that apply.

A
Nuclear binding energy holds the nuclear particles together
B
Nuclear binding energy is the energy needed to separate nuclear particles.
C
The strong nuclear force holds an atom’s protons and neutrons together.
D
The strong nuclear force is the energy released during radioactive decay processes.
E
The strong nuclear force is directly responsible for radioactive decay.
F
Nuclear binding energy can be calculated using E = mc2.
7

Calculate the mass defect for oxygen-16 given this data. Round to the 5 decimal place.mass of an oxygen-16 atom: 15.994914 amumass of a proton: 1.00728 amu mass of a neutron: 1.00866 amumass defect = ⇒ 0.13261 amu

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Answer:

PENDING

8

Mass defect for oxygen-16 = 0.13261 amu How many kilograms does the mass defect represent?

A
1.66 × 10-27 kg
B
2.20 × 10 -28 kg
C
3.0 × 108 kg
D
8.24 x 1025 kg
9

Kilograms represented by the mass defect for oxygen-16: 2.20 × 10 -28 kgWhat is the nuclear binding energy for oxygen-16?

A
3.0 × 108 J
B
6.60 × 10-20 J
C
1.98 × 10 -11 J
D
3.69 x 10-24 J
10

How many protons does Thorium have? How many neutrons does Thorium-234 have? Calculate the mass defect for the isotope thorium-234 = amu

Answer:

90

11

Mass defect for the isotope thorium-234 = 1.85864 amuHow many kilograms does the mass defect represent?

A
1.85864 × 10-10 kg
B
1.12 × 10- 22 kg
C
3.09 × 10-27 kg
D
1.66 x 10-27 kg
12

Kilograms represented by the mass defect for thorium-234 = 3.09 × 10-27 kgWhat is the nuclear binding energy for thorium-234?

A
2.78 × 10-10 J
B
3.36 × 10-14 J
C
1.67 × 1017 J
D
5.35 x 10-23 J
13

Calculate the mass defect and the nuclear binding energy of nitrogen-14.The mass of a proton is 1.00728 amu, and the mass of a neutron is 1.00866 amu. The mass of a nitrogen-14 atom is 14.00307 amu.The mass defect of nitrogen-14 is amu. Round to the 5 decimal place. The nuclear binding energy of one nitrogen-14 atom is x 10A J. Round to 3 significant digits. A:

Answer:

0.10851

14

How many neutrons does Thorium-234 have?

Answer:

144

15

The nuclear binding energy of one nitrogen-14 atom is x 10A J. Round to 3 significant digits.

Answer:

1.62

16

Calculate the mass defect for the isotope thorium-234 = amu

Answer:

1.85864

17

A:

Answer:

-11

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