Question

7. Which particulate form of radiation is sometimes referred to as a "delta (8)"ray when it originates as a secondary particle from the absorbing medium? A. Electron B. Alpha particle C. Neutron D. Positron 8. In general, the the energy per individual photon, the shorter the wavelength is for a particular form of electromagnetic radiation. A. Lower B. Higher C. Slower D. Faster 9. The statement, "A body will remain at rest or will continue to move with constant velocity in a straight line unless acted on by an external force" is termed Newton's Law of A. Action Reaction B. Inertia C. Force D. Body motion 10. The only difference between an X-ray and a gamma ray is that gamma rays originate from the and X-rays originate from the 11. For the number of neutrons in the nucleus is and is the number of protons. 12. Which scientist is known for coining the term "radioactivity" as it applied to a phenomenon being studied with respect to radium and radium daughter nuclides? A. Einstein B. Curie C. Becquerel D. Bohr

Answer 1

7)Electrons are referred to as delta ray.

8)Higher the energy per individual photon because the wavelength is shorter (and frequency is higher ).

9)It is Newton's first law of motion, also called Newton'd law of inertia.

10)Gamma rays originate from the nucleus and X rays originate from the electrons.

11)Number of protons = 6

Number of neutrons = 14-6 = 8

12)Becquerel coined the term radioactivity.