1. carbon-11 decays by positron emission the decay occurs with a
release of?
when an atom undergo a
positron emission , a protons decays into a neutron, a positron, and electron
neutrino is emitted. the resulting isotope or atom will be boron-11, there will be drop in atomic number and no
change atomic mass.
2. the formation of krypton from rubidium decay is a result of?
krypton has atomic number of
36 while rubidium has atomic number of 37, for a krypton to be formed from
rubidium, the rubidium must lost a single proton, therefore the process that
occur is positron emission. because a proton decays to neutron.
37Rb → 36Kr + +e
3. what is the largest number of protons that can exist in a
nucleus and still be stable?
4. 41ca decays by electron capture the product of this reaction
undergoes alpha decay what is the product of this second decay reaction
in electron capture a protons
is converted to neutron and an electron neutrino. therefore the resulting atom
will be less by one proton while the atomic mass remain unchanged
20Ca → 19Ka +
-e
now the potassium undergo a alpha decay,
meaning a decrease of two from atomic number and four from mass number.
41 19Ka → 37 17Cl + 4 2He
the of the second decay is chlorine -37
5. the half life of cobalt 60 is 5.20 yr how many milligrams of a
2.000 mg sample remains after 6.55 years
after 6.55 years only one
half life has elapse, therefore what remains is 1.00mg of cobalt -60
6. the following reaction represents what nuclear process?
23595u+10n→13956ba+9436kr+310n
let me rewrite the equation,
23595U+10n→13956Ba+9436Kr+30n
The above reaction is a
nuclear fission process where a heavy nucleus ( uranium) is bombarded with a neutron, and the product s are lighter
atoms of krypton and berkelium .
7. in this 235 92u+10n→azsr+143 54xe+310n find the the atomic
and mass number for this reaction?
let me rewrite the equation
235 92U+10n→AZSr+14354Xe+310n
8. write a nuclear reaction for the neutron-induced fission of
u−235 to form xe−144 and sr−90.
Attempt the following
question using the comment box
9. "write a nuclear equation for the fusion of h−3 with h−1
to form he−4."
10. when 131i emits a β particle, what nuclide is produced?
11. a nuclide undergoes decay and forms 110i. what is the nuclide?
12. what is the nuclide?
13. o-15 decays by positron emission. what is the product of this
decay?
14. what is the element produced when 44ti undergoes electron
capture?
15. a nuclide undergoes proton emission to form 52 fe. what is the
nuclide?
16. identify the missing isotope in the nuclear reaction below:
17. when 131i emits a particle, what nuclide is produced?
18. bombarding 54fe with a neutron results in emission of a proton
and formation of
19. why does the band of stability curve upward at high atomic
numbers?
20. what nuclide is formed when 211po undergoes α decay?
21. produced?
22. a nuclide undergoes decay and forms 110i. what is the nuclide?
23. iodine 131 decay equation
24. what is the element produced when 44ti undergoes electron
capture?
25. consider the following equation: e = mc2. what does each
variable/constant represent?
26. o-15 decays by positron emission. what is the product of this
decay?
27. using the symbol...what element is produced from by the decay of
radium-226
28. how is iodine 131 made
29. when iodine 131 undergoes beta decay the product is
30. "what is the element produced when 44ti undergoes electron
capture?"
31. how is iodine 131 made
32. which of the following properties of an element is least likely
to change with beta decay?
33. when a nucleus has too many protons, it can absorb an electron
and create
34. what kind of ray is given off after electron capture
35. using the symbol...what element is produced from by the decay of
radium-226
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