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Question and answer
Q: When radium-226 decays to form radon-222, the radium nucleus emits a(an) A. alpha particle. B. beta particle. C. gamma ray. D. electron.
A: A. alpha particle.
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Original conversation
User: When radium-226 decays to form radon-222, the radium nucleus emits a(an) A. alpha particle. B. beta particle. C. gamma ray. D. electron.

Weegy: A. alpha particle.
LoveSolo|Points 80|

User: Suppose 3 neutrons are released by an atom in the first stage of a fission chain reaction. Each of these neutrons has enough energy to cause another fission reaction in another nucleus of the material. If all the neutrons cause other nuclei to fission, how many atoms will have undergone fission after 2 more stages of the chain reaction? A. 6 B. 12 C. 9 D. 27

Weegy: 27 atoms will have undergone fission after 2 more stages of the chain reaction.
emdjay23|Points 673|

User: Which of the following is a radioisotope used to date rock formations? A. carbon-14 B. uranium-235 C. cobalt-60 D. carbon-12

Weegy: B. uranium-235
jeifunk|Points 9233|

User: Uranium-238 undergoes alpha decay. Therefore, uranium-238 will A. remain stable. B. change into a different element altogether. C. emit neutral particles and no energy. D. none of the above

Weegy: B. change into a different element altogether.
Amtid09|Points 60|

User: Which of the following is an advantage of using nuclear power plants to produce electricity? A. Nuclear power plants do not pollute the air. B. Nuclear power plants produce wastes that are easy to dispose of. C. Nuclear power plants produce more stable wastes compared to fossil fuel combustion. D. all of the above

Weegy: Which of the following is an advantage of using nuclear power plants to produce electricity? A. Nuclear power plants do not pollute the air. - - -
vanilla2bean|Points 4121|

User: The half-life of a radioisotope is the amount of time it takes for A. half the sample to decay. B. all the sample to decay. C. the age of an artifact to be calculated. D. detectable radiation to be absorbed by a sample.

Weegy: A. Half the sample to decay.
Caprisun|Points 849|

User: During nuclear fission, great amounts of energy are produced from A. very small amounts of mass. B. tremendous amounts of mass. C. a series of chemical reactions. D. particle accelerators.

Weegy: A. very small amounts of mass.
jeifunk|Points 9233|

User: What type of radiation is emitted when polonium-212 forms lead-208? A. an alpha particle B. a beta particle C. gamma radiation D. all of the above

Weegy: A. Alpha Particle
AwesomeGuy200|Points 1177|

User: Carbon-14 forms nitrogen-14 by A. alpha decay. B. beta decay. C. gamma decay. D. none of the above

Weegy: B. beta decay
dennis003|Points 1030|

User: Which of the following is NOT an advantage of using a fusion reaction instead of a fission reaction to produce energy? A. Workers are not in as much danger from radiation. B. Hydrogen is used, and hydrogen is easily obtained from water. C. No harmful waste products are produced. D. Fusion reactors require less energy than fission reactors do.

Weegy: D. Fusion reactors require less energy than fission reactors do.
vanilla2bean|Points 4121|

User: Which of the following statements is true? A. Chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not. B. Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. C. Both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction. D. Neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction.

Weegy: A. Chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not.
jher000|Points 8041|

User: What type of nuclear decay releases energy but not a particle? A. alpha decay B. beta decay C. gamma decay D. electron decay

Weegy: C. gamma decay
Fanboy|Points 2821|

User: Many people work near a source of nuclear radiation. To detect the amount of exposure they have to radiation, they most likely will use a A. Geiger counter. B. film badge. C. radon kit. D. lead shield. Reset Selection

Weegy: They will most likely use B a film badge, which darkens when radition is detected.
Grasscarp|Points 309|

User: Which of the following is NOT a step in the operation of a Geiger counter? A. Nuclear radiation ionizes gas in a tube. B. Ionized gas produces an electric current. C. Magnets cause the ions to conduct electricity. D. The electric current is detected and measured.

Weegy: B. Ionized gas produces an electric current.
armorspine|Points 85|

User: What is the process in which an unstable atomic nucleus emits charged particles or energy or both? A. radioactivity B. oxidation C. decomposition D. none of the above

Weegy: The process is called radioactivity.
interpersonal1|Points 60|

User: The half-life of tritium, or hydrogen-3, is 12.32 years. After about 24.6 years, how much of a sample of tritium will remain unchanged? A. 1/8 B. 1/4 C. 1/3 D. 1/2

Weegy: 1/4
tjdcet|Points 361|

User: Figure 10-1 Study Figure 10-1. The strong nuclear force felt by a single proton in a large nucleus A. is much greater than that felt by a single proton in a small nucleus. B. is much less than that felt by a single proton in a small nucleus. C. is about the same as that felt by a single proton in a small nucleus. D. is about the same as the electric force felt by a single proton in a small nucleus.

Weegy: In a large nucleus a proton will be affected by many more electric forces than strong nuclear forces. These smaller electric forces will contribute to the instability of the nucleus.
SarahGCarpio|Points 51|

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Asked 3/25/2013 5:26:57 PM
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Perform the modular arithmetic operation. [(5 - 9) · 3] (mod 5) A. 1 B. 2 C. 0 D. 3
Weegy: answer is D. 3! User: Perform the modular arithmetic operation. -12 (mod 5) A. 1 B. 2 C. 0 D. 3 Weegy: 2w - 2 = -12, 2w=-10, w=-5 User: Use the simple interest formula to find the missing value. Rates are annual rates. Assume 360 days per year and 30 days per month. p = ?, r = 4.5%, t = 10 days, i = $26.68 A. p = $21,344.00 B. p = $711.47 C. p = $7114.67 D. p = $21,670.09 Weegy: The answer is A. p = $21,344.0 The formula is 26.68 * 36) / 0.045 = 21 344 User: Write as a decimal. 249.4% A. 24.94 B. 24,940 C. 249.4 D. 2.494 Weegy: 249.4% = D.2.494 User: Solve the problem. Where appropriate, round to the nearest tenth of a percent. The price of a printer was reduced from $400 to $180. What was the percent decrease? A. 60% B. 122.2% C. 45% D. 55% Weegy: The price decrease is 70%. User: Use a day counting table to find the exact number of days from the first date to the second date. Assume the year is not a leap year unless otherwise indicated. January 15 to July 31 (a leap year) A. 197 B. 198 C. 213 D. 196 Weegy: b User: Use the sinking fund formula to determine the payment needed to reach the accumulated amount. Round the answer to the nearest cent. Annual payments with 5% interest compounded annually for 8 years to accumulate $6000 A. $736.92 B. $544.14 C. $628.33 D. $203.05 Weegy: c User: Solve the problem. Round to the nearest hundredth.45% of what number is 81? A. 180.00 B. 56.00 C. 1800.00 D. 0.56 (More)
Question
Not Answered
Updated 9/1/2014 2:21:51 AM
1 Answer/Comment
45% of 180 is 81.
81/45% = 81/0.45 = 180
Added 9/1/2014 2:21:51 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [9/1/2014 2:32:07 AM]
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