The Nucleus

Question 1

Which of these forces are acting within a nucleus? Check all that apply.

Revolt · Accepted Answer

strong nuclear force; electrostatic forces of repulsion

Question 2

m stands for ,

Revolt · Accepted Answer

mass

Question 3

and c stands for

Revolt · Accepted Answer

speed of light.

Question 4

Which of these conditions most likely produces an unstable isotope?

Revolt · Accepted Answer

equal numbers of protons and neutrons in a large nucleus

Question 5

These traits describe either a chemical or a nuclear reaction. Which statements describe a nuclear reaction? Check all that apply.

Revolt · Accepted Answer

may involve a change in total mass; involve very high-energy changes; involve changes in nuclides when decay occurs

Question 6

In the equation E = mc2, E stands for ,

Revolt · Accepted Answer

energy

Question 7

Calculate the amount of energy produced by the conversion of 50.0 kg of mass into energy. Use 3.00 x 108 m/s for the speed of light. Round to 3 significant digits.Which setup will solve this problem?

Revolt · Accepted Answer

E = (50.0 kg)(3.00 x 108 m/s)2

Question 8

A carbon-12 atom has a mass defect of 0.09564 amu. Which setup is used to calculate nuclear binding energy?

Revolt · Accepted Answer

0.09564 amu x (1.6606 x 10–27 kg)/amu x (3.0 x 108)2

The Nucleus Answers

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