How much cesium is left after 4 half-lives?
1/16 of the original sample of any unstable element remains after 4 half lives.
As you did not specify an isotope of cesium, I will assume you meant natural cesium. Natural cesium is not radioactive so it does not decay. There will always be the same 10 g of cesium, no matter how long you wait.
Assuming a half life of 2 years (it's actually more like 30 years), one fourth of the original amount of cesium would remain after 4 years.
I suppose that you think to the radioactive isotope Cs-17; After 4 years remain 9,122 g.
as of 5/14/2013 Left 4 Dead 2 cost 29.99
$18.54 for a Xbox 360 Copy of Left 4 Dead. $39.82 for a PC Copy of Left 4 Dead.
Left For Dead is so much better! Left For Dead rocks!
Only 4 years left for 7th pay commission
30 bucks, go to the store.
Once, with 3 left over.
It is merely an opinion on which is better but Left 4 dead 2 has much more things to do compared to the first one. It also includes 3 more special infected, the "Spitter", the "Charger", and the "Jockey". The online multiplayer is also much more improved with an updated "Director A.I." system to generate a different experience according to your play strategy. If I were to make the decision, I'd say get Left 4… Read More
All of GameCrazy's locations have closed after parent company Movie Gallery's bankruptcy and liquidation and you can not purchase left 4 dead there
Anywhere from $30 to $50
$5.00 in 2012
28 times, with 4 left over.
It depends on how much you put in each bag - if you put 3.5 pounds of candy in each bag, there will be none left.
29.95 online at Walmart's website Left 4 dead 2 cost 19$ and 95 cents
The context of the question is not very clear. Here are some examples. There may be other scenarios as well. First let's say you have $11 and out of the goodness of your heart you gave $4 to your kid bother. "How much left" would in this case would involve a subtraction operation (11-4) to give $7 which is the amount left with you for your pleasure. Let's say you have a pizza which your… Read More
50.00 !!!!! SO TRY TO GET YOUR MONEY!!
Around 2-4 gallons.
Its been in its main phase for about 4 1/2 billion years and should have 4-5 billion years left until it turns into a Red Giant.
Cesium (Cs), tucked in the lower left hand corner of the table, has the largest known atoms. The atomic radius of Cs is given variously as 273.1 pm , 265 pm , 265.5 pm  or 260 pm . Rubidium also has large atoms, but its atomic radius is almost 30 pm less than cesium's. Why are cesium atoms so big? Cesium has a large valence shell and a relatively low effective nuclear charge. The… Read More
I made a left hand turn leaving my son's school at 2:50 when the sign (I did not see) said between 2 - 4 no left hand turn? How much for this ticket?
it not yet downloadalb but if u got left 4 dead 1 add me kj awesome
yes very much so
4 litres 205ml
there is around 78000 lbbs of helium left in the us but around the whole world there is 4 and a half times more than that.
14 pieces. 4 inches left over.
Cs+ F- (I can't type it out, but the F- is surrounded by 4 pairs of dots that represent electron pairs.)
No there isn't any melee weapons on left for dead 1. No much good having one either.
A cesium-133 atom makes 9,192,631,770 cycles per second. Divide it by 4.5 million: 9,192,631,770 / 4,500,000 = 2042.807 Divide 1 second by 2042.807 and the result is 4.895 *10^-4 seconds. If you multiply it by 10^6 you get microseconds: 4.895*10^-4 * 10^6 microseconds/second and that equals 489.5 microseconds.
There is a right and a left radiator, together they weigh about 4 kg.
Cesium has the larger atomic radius, because it has electrons in 6 energy levels, whereas potassium has electrons in only 4 energy levels. As a result, cesium is the more reactive of these two alkali metals, because its valence electron is farther away from the nucleus, and thus easier to manipulate away from that atom to form an ion.
An isotope of cesium-137 has a half-life of 30 if 1.0 g of cesium-137 disintegrates over a period of 90 years how many g of cesium-137 would remain?
1/8th of a gram. You compute it like this: After 30 years, half of the original amount would remain (1/2-gram). After another 30 years, half of that half would remain (1/4-gram). After the remaining 30 years, half of the 1/4-gram would remain, or 1/8-gram. Wikipedia has a simple table and explanation as well: http://en.wikipedia.org/wiki/Half-life
No, Left 4 Dead 3 is not coming out. There is only Left 4 Dead and Left 4 Dead 2. Both fun games.
Well I am Positive that there are exactly 4 1/2 left not including the ones that are hiding in your closet.
What is 36 inches of ribbon and cut the ribbon into 4 strips with each being 6 inches how much ribbon left?
6x4 = 24 36 - 24 = 12 12 inches left...
1 mercury 2 bromine 3 cesium 4 gallium note that 3rd and 4th are liquid at slightly above room temp ie 39.9degree Celsius
They (Valve and Havok) haven't announced a left 4 Dead 4, but they have announced a Left 4 Dead 3 coming out in 2011.
About 1/3 to 1/4 of a tank.
he isn't dead, he's very much alive.
If a girl has three bars of chocolate and each bar has 4 pieces and she eats 5 pieces how much does she have left'?
This is a simple subtraction problem. 12 - 4.50 = 7.50. You have $7.50 cents left. To do this in your head first think 12 - 4 = 8. Then 8 - 0.50 = 7.50.
No, left 4 dead will only work for left 4 dead mods.
You can't get The Passing on Left 4 Dead 1. It is only a DLC for Left 4 Dead 2.
Not Left 4 Dead 1 or 2, but Valve and Havok announced the Haggard in Left 4 Dead 3.
Left 4 Dead is quite a good game if you like shooting zombies in an online mmo style. But, if you already have left 4 dead, you should get left 4 dead 2.
It cost me 49.99 to preorder it from Gamestop. The X-Box one is more money.
If you love zombie games then you'll love Left 4 dead, they also came out with Left 4 Dead 2.