evis3Jazzmine
evis3Jazzmine
01-07-2016
Chemistry
contestada
what element has a half-life = to 64
Respuesta :
taskmasters
taskmasters
10-07-2016
The best answer is the isotope of strontium which is strontium-85. It has a half-life of about 64 days. The metal strontioum has four stable, naturally occurring isotopes which includes 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%).
Answer Link
VER TODAS LAS RESPUESTAS ( 18+ )
Otras preguntas
A marathon had 618 runners registered. Of these runners, about 0.8% completed the race in under 2 h 15 min. a) How many runners completed the race in this time?
Joe and Ann buy some fruit from the same shop. Joe buys 4 apples and 3 bananas for £2.50 Ann buys 3 apples and 4 bananas for £2.40 Work out the cost of (i) one
A marathon had 618 runners registered. Of these runners, about 0.8% completed the race in under 2 h 15 min. a) How many runners completed the race in this time?
Plot A(2,3) and B(2,5). What is the midpoint of points A and B?
Plot A(2,3) and B(2,5). What is the midpoint of points A and B?
1. The report tomorrow (finish).
Explain the different stages in nutrition of amoeba ?
Solve each of the following equations. Show its solution set on a number line. Check your answers. |3x-2| = 19
96 members are going to pass a resolution to select a team leader. If 1/6 of the members voted in favor and 2/5 of the members voted against how many did not vo
Salmon often jump waterfalls to reach their breeding grounds. Starting downstream, 3.02 m away from a waterfall 0.258 m in height, at what minimum speed must a
