33-39

Chemistry
Tutor: None Selected Time limit: 1 Day

Dec 8th, 2014

33. Carbon dating is a method used to determine the age of an object by 14C, an radioactive isotope of carbon.

34. 83

35. alpha decay is the production of (4,2)He,

    So (209,84)Po===>(4,2)He + (205,82) Pb

36. When there is an unstable nucleus with an excess of either neutron or proton, a beta particle will be produced.

37. (1,1)H + (17, 8) O---> (14,7)N + (4,2) He + (0,0) gamma

38. (238,92) U===> (234,90) Th+(4,2) He

      (18,8) O===> (17,9)F + beta- + ve

39. alpha,    (4,2) He,        helium nucleus,    cannot penetrate a piece of paper

    beta,         beta+, beta-    electrons or positrons,    cannot go through aluminium shielding

    Gamma,   gamma,        high energy photons,        can only be reduced by a very thick layer of lead 

Dec 8th, 2014

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Dec 8th, 2014
...
Dec 8th, 2014
Dec 8th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer