coats, gloves Carbon-14 Typical Source Radium-226 If ork in an environment where
ID: 227687 • Letter: C
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coats, gloves Carbon-14 Typical Source Radium-226 If ork in an environment where radioactive materials uclear medicine facility, try to keep the time you spend in a radioac aining in a radioactive area twice as long exposes you to twice a Reep your distance! The greater the distance from the radioa he intensity of radiation received. By doubling your distance fro eviou as long exposes y he intensity of radiation drops to (), or one-fourth of its p UESTIONS AND PROBLEMS .1 Natural Radioactivity EARNING GOAL Describe alpha, beta, positron, and amma radiation. Identify the type of particle or radiation for each of the following: a. He Identify the type of particle or radiation for each of the following: 1 0 C. 0 2 3 Naturally occurring potassium consists of three isotopes: potassium-39, potassium-40, and potassium-41 . a. Write the atomic symbol for each isotope. b. In what ways are the isotopes similar, and in what ways do they differ?Explanation / Answer
1.
(a) alpha (b) positron (c) gamma
2.
(a) Beta (b) proton (c) neutron
3.
(A) 19K39, 19K40, 19K41
(b) Isotopes have same number of protons but different numbers of protons.
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