Nuclear decay?

this has to do with those alpha, beta, positrons..

235/92 U + 1/0n --> ___ + 135/54 Xe + 2x1/0n

the question is what to put in the blank. The answer is 99/38 Sr but I don't see how you get it.

I couldn't write the numbers vertically..so 235 is the mass, 92 is the number of protons.

Answer:
In uranium nuclei 92 protons and 143 neutrons are there ,on bombardment with the neutron nuclear fission takes place and 2 neutrons are released. As neutrons are charge less particles there is no loss of protons in this process. Hence, on right hand side 92 protons should remain as total.
Therefore, the total of protons in Xe and the Blank space atom should be 92. Now Xe has got 54 protons , so the Blank space atom would be Sr with 38 protons as 54+38 =92
Therefore, Sr with atomic number 38 is the correct option.

The answers post by the user, for information only, FunQA.com does not guarantee the right.



More Questions and Answers:
  • A 475 mL sample of gas is collected over water at 27°C and a total pressure of 675 mm Hg. If...?
  • Please predict whether each of the following bonds is ionic, polar covalent, or nonpolar covalent?
  • Which element has the largest number of electrons in its valence shell? S Fr K As F?
  • Calculate the molality of the aquaeous sol'n? 1.22 molarity of C12 H22 O11 sol'n whose density is 1.12g/m?
  • When purifying copper by electrolysis, does the copper sulphate solution need to be molten?
  • Dye-penetrant testing, detecting cracks in metals, non-destructive test material/DP test?
  • Can someone please help me with this Chemistry problem?
  • Solving a word problem .(kelvins & degrees Celsius)?
  • Kinda hard titration question...?