Physics, 25.06.2020 02:01 JalenBunting2441
33. In the “Masses of Subatomic Particles and Radiation” table from the Science Data
Booklet and in nuclear reactions, the electron is given a mass number of 0 in it nuclear notation of e, even though the electron does have some mass. Explain why the mass of the electron can be ignored in a nuclear reaction involving protons and neutrons. Include calculations to support your answer.
34. Thorium-232 undergoes alpha decay relatively slowly. Its nucleus gives off one
alpha particle during its decay. Thorium-232, although radioactive, is found in the materials of some lantern mantles. Using nuclear notation, write the balanced
nuclear equation representing the alpha decay of the isotope thorium-232.
35. The isotope radon-218 occurs as a product of the alpha decay of the isotope of another element. With each radon nucleus, one alpha particle is emitted. Using nuclear notation, write the balanced nuclear equation representing the alpha decay having the product radon-218.
Answers: 1
Physics, 22.06.2019 01:30
Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
Answers: 1
Physics, 22.06.2019 15:40
If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
Answers: 1
Physics, 23.06.2019 02:00
Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8
Answers: 1
33. In the “Masses of Subatomic Particles and Radiation” table from the Science Data
Booklet and in...
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