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How many grams of radium-222 remain in a 12-gram sample after 76 seconds?
After 76 seconds, half of the radium-222 would have decayed (its half-life is about 3.8 days). Therefore, the quantity of radium-222 remaining in the 12-gram sample would be 6 grams.
How much of a 20-g sample of radon-222 will remain after eight days?
reference table N: Half Life of Rn-222 is 3.823d = 8/3.823 = # of Half lives = 2.09 (roughly 2) 20g-> 40g-> 80g doesn't say anything about decay so assume to increase since how much will remain in 8days Ans: 80g
How many pounds are in 227 kilograms?
1 kg = 2.20462 pounds 222 kg x 2.20462 pounds/kg = 489.4 pounds The formula to convert kg to lbs 222 kg* 2.2046 lbs 1 kg = 489.4262221 lbs you may try the online converter linked below
How heavy is 222 kg in stones?
222 kg is equivalent to approximately 34.8 stones.
What is the beta decay equation of radium-222?
The equation for the alpha decay of radon-222 takes the following form. Radon-222 ----> He + Polonium. In an alpha decay, the atom loses 2 neutrons and 2 protons.
How many ounces are in 222 grams?
There are approximately 7.83 ounces in 222 grams.
How many days are required for 200 grams of radon-222 to decay to 50 grams?
7.64 it is the half life of radon-222 multipled by 2
How many kilograms is 222 pounds?
222 pounds = 100.698 kilograms or 100 kilograms 697.506 grams1 pound ~= 0.45359 kilograms1 kilogram ~= 2.2046 pounds
How many days are required for 200 grams of radon-222 to decay to 50.0 grams?
7.64 days
How many grams of radium-222 remain in a 12-gram sample after 76 seconds?
After 76 seconds, half of the radium-222 would have decayed (its half-life is about 3.8 days). Therefore, the quantity of radium-222 remaining in the 12-gram sample would be 6 grams.
How many days are required for 200 grams of radon 222 to decay to 50.0 grams?
Radon-222 has a half-life of about 3.8 days. To calculate the time required for 200 grams of radon-222 to decay to 50 grams, you can use the formula: [N = N_0 \left(\frac{1}{2}\right)^{\frac{t}{t_{1/2}}}] where N is the final amount (50 grams), N0 is the initial amount (200 grams), t is the time in days, and t1/2 is the half-life. Solving for t gives around 7.6 days.
How many fewer 111 than 222?
111 is 111 fewer than 222.
What is larger 2.20462 or 222?
222 is more than 100 times larger than 2.20462.
What the answer of 222 less than 2683?
It is: 2461
Is 0.222 bigger then 0.25?
No. Think of it like this. 0.222's fraction form is 222/1000 and 0.25's fraction form is 25/100. To compare, you need to make them the same denominator. So 25/100 turns into 250/1000. Now what is bigger 222/1000 or 250/1000?
One cereal bar has a mass of 37 g what is the mass of 6 cereal bars is that more than or less than you kg?
Less than because when you multiply 6 cereal bars by 37 g./bar you get 222 g. Convert 222 g. to kg and it is .222 kg.
Is 222 a prime number?
No because it has more factors than 2
