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fi Dwww.saplinglearning.com/ibiscms/mod/ibis/view.php?id=2469883 2 Available From 2/24/2016 06:00 PMM 3 Elements that appear in the same column of the periodic the alkaline earth metals, this is troublesome since the body + treats calcium (necessary for proper bone growth) and radium (a radioatictive element) as chemically similar storing both in bone marrow. The radium then bombards nearby bone cells with alpha particles, causing them to You can check your answers. Radium poisoning investigations often center on the identification of radium and its isotopes in bone samples using a mass spectrometer. Pictured is a schematic of a simplified mass spectrometer, showing the paths of calcium, barium (another alkaine earth metal) and radium isotopes+ You can keep trying to answer each question until contaaghe ieingoutof he piaV of the schematic. Motion of the positively-c toward the right was initiated by a potential difference of 2773 V on the two plates shown. You lose 5% of the points available to each answer in your question for each incorrect attempt at that Using the data shown in the table below, calculate the path Using the same data table, match the particles to their path label Previous Give Up & View Solution # Try Again Technical Support and Bug Reports Next ExitExplanation / Answer
1/2 * mv^2 = q*V
mv^2 = 2*q*V
F = q*vB = m*v^2/r
q*vB = 2*q*V/r
v*B = 2*V/r
B & V are Constant for all of them so can be ignored,
r = 1/v
Now,
v depeds on, v = sqrt(q/m)
r = sqrt(m/q)
So Basically The radius of the the path depends on the ratio m/q, Higher the ratio Higher the r.
We have Value of m & q for all the ions. Calculate each ratio and put them
0.666/1.602 , 0.666/3.204 , 2.28/1.602 , 2.28/3.204 , 3.75/1.602 , 3.75/3.204, 3.75/4.806
0.415, 0.207, 1.42 , 0.711, 2.34, 1.17, 0.78
Answer for Path A - G are as below,
Ca+2 , Ca+ , Ba+2 , Ra+3 , Ra+2, Ba+ , Ra+
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