Using Table 2: Common Radioactive Isotopes, identify the radioisotope that you

Chemistry

1 answer:

TiliK225 [7]1 year ago

3 0

Answer:

Explanation:

Table 2: Common RadioactiveIsotopesUse this table to identify the most likely radioactive material used in theassault.Type ofSourceHalf-lifeRadiationCalifornium-252aIndustrial2.6 years-Used to test luggage for hiddenexplosives-Used to gauge moisture levels of soil fortheconstructionindustryCesium-137,')'Industrial30 years-Used in radio-tracing to identify sources ofsoilerosion anddeposition-Used to determine if oil wells are plugged withsand-Used to measure flow of fluids inpipesMedical-Used in cancertreatmentCobalt-60,')'Industrial5.2 years-Usedto check for cracks inpipesMedical-Used to sterilizeinstrumentsCurium-244aIndustrial18.1 years-Used in mining to analyze the materials dugfrompitsIodine-131,')'Medical8.0 days-Used to diagnose and treat human diseases ofthethyroidPlutonium-239a,yNuclear24,110years-Used as heat source in electricity generatorsonsomespacecraft-Used to buildthermonuclear weaponsPolonium-210a,yIndustrial138 days-Used to reduce static electricityin anindustrialsetting.

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The mass of a deuterium nucleus 21H is less than its components masses. Calculate the mass defect.________ amu

Inessa [10]

Answer:

The mass defect of a deuterium nucleus is 0.001848 amu.

Explanation:

The deuterium is:

$^{A}_{Z}X \rightarrow ^{2}_{1}H$

The mass defect can be calculated by using the following equation:

$\Delta m = [Zm_{p} + (A - Z)m_{n}] - m_{a}$

Where:

Z: is the number of protons = 1

A: is the mass number = 2

$m_{p}$ : is the proton's mass = 1.00728 amu

$m_{n}$ : is the neutron's mass = 1.00867 amu

$m_{a}$ : is the mass of deuterium = 2.01410178 amu

Then, the mass defect is:

$\Delta m = [1.00728 amu + (2- 1)1.00867 amu] - 2.01410178 amu = 0.001848 amu$

Therefore, the mass defect of a deuterium nucleus is 0.001848 amu.

I hope it helps you!

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3 years ago

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PLZ HELP!<br><br> How do you think changing the angle of a ramp will affect work done?

kogti [31]

Answer: The steepness of a ramp affects it by making it easier or harder.

Explanation: It's a bit situational. If you were going up a steep ramp with a heavy load, it will increase the work necessary, whereas if you were going down a ramp, it would decrease the work necessary. If you need this simply put, think about biking up and down a hill. It would be easier going down than up.

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3 years ago

Find the percentage composition of a compound that contains 1.94 g of carbon, 0.48 g of hydrogen, and 2.58 g of sulfur.

Svetradugi [14.3K]

Answer : The percentage composition of carbon, hydrogen and sulfur in a compound is, 38.8 %, 9.6 % and 51.6 % respectively.

Explanation :

To calculate the percentage composition of element in sample, we use the equation:

$\%\text{ composition of element}=\frac{\text{Mass of element}}{\text{Mass of sample}}\times 100$