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

Which of these conditions most likely produces an unstable isotope?

Revolt · Accepted Answer

equal numbers of protons and neutrons in a large nucleus

Question 3

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 4

In the equation E = mc2, E stands for ,

Revolt · Accepted Answer

energy

Question 5

m stands for ,

Revolt · Accepted Answer

mass

Question 6

and c stands for

Revolt · Accepted Answer

speed of light.

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

The amount of energy released when 50.0 kg is converted into energy is x 10A.

Revolt · Accepted Answer

4.50

Question 9

A:

Revolt · Accepted Answer

18

Question 10

A carbon-12 atom has a mass of 12.00000 amu. The mass of a proton is 1.00728 amu, and the mass of a neutron is 1.00866 amu. How many protons does the carbon-12 atom have?

Revolt · Accepted Answer

6

The Nucleus Answers

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