1. if th-234 emits a beta particle, what nucleus is formed?
if thorium emits a beta
particle its , the nucleus formed will have one more proton and one less
neutron., the atomic mass remain the same. the equation below shows it
234 90Th → 234 91Pa + 0-1e
the nucleus formed is protactinium-234
2. if nitrogen-14 absorbs a neutron and then emits a hydrogen-1,
what nucleus is formed?
let us start by writing the
decay equation
14 7N + 10n → 11H + ?
the nucleus formed will be giving by
14 7N + 10n → 11H + 136C
the nucleus formed will be carbon-13
3. how will the atomic number of an element change after its
nucleus emit an alpha particle
when an atom of an element
emits alpha particles, the atomic number
of the atom reduces by two while the mass number by four, an alpha particle is
a helium nucleus, it has a charge of +2
and a mass of 4 amu.
4. how do the mass number and charge of a nucleus change when it
emits a gamma ray
a gamma ray is an em waves or
just a photon, it has no charge nor mass, ejecting it by a nucleus will only
result to release of energy, the mass number
and charge of any atom that emits gamma ray does not charge.
5. what is the effect on the mass number and charge of a nucleus
when it loses an alpha particle
the mass number of the atom that emits an alpha particle, 42He
decreases by two while the charge
decreases by +2.
for example
21084Po → 42He + 20682Pb
6. what happens to a nucleus when it emits an beta particle
when a nucleus emits a beta
particle it atomic number increase by one while the atomic mass remain
unchanged
for example
234 90Th → 234 91Pa + 0-1e
the nucleus formed is protactinium-234
7. when neptunium emits a beta particle the result is
when neptunium emits a beta
particle the result is
plutonium, but they must have
same atomic mass with the plutonim.
8. the function of graphite in the first atomic reactor was to
is to moderate nu
9. when u 239 emits a beta particle the nucleus left behind has
when uranium-239 emits a beta
particle the nucleus formed is protactium-239,
see the decay equation below
239 90Th → 239 91Pa + 0-1e
the nucleus formed is protactinium-239
11. nuclear fusion releases energy in the form of _____.
heat and light.
12. energy released by the sun results from the process wherein
atomic nuclei?
fused into togetter in the
nuclear process called fusion, the atoms of
13. when an alpha particle is ejected from a nucleus, the nucleus
then has less
protons and neutron, ejection
of an alpha particle by an atom result to the loss of two charges and four amu
.
14. is uranium-235, uranium-238, and uranium-239 are different?
they are isotopes they have
same atomic number or simply same number of protons but different mass number
Attempt the
following question
15. when u 239 emits a beta particle the nucleus left behind has
16. a chain reaction grows when the average number of liberated
neutrons which go on to cause further fissions is
17. when uranium - 238 absorbs a neutron, it
18. when uranium emits a beta particle, the result is a
19. when an atom emits a beta particle how does its mass change
20. what is the change in atomic mass number when an atom emits an
alpha particle (1 point)
21. what does the band of stability for atomic nuclei refer to
22. determine what type of decay occurs when thorium-231 undergoes
radioactive decay to form protactinium-231
23. when uranium-238 decays what is the daughter product that is
produced
24. determine what type of decay occurs when thorium-231 undergoes
radioactive decay to form protactinium-231
25. what is the change in atomic mass number when an atom emits an
alpha particle
26. what type of decay does am-241 undergo to become np-237
27. which series consists of radioactive nuclides produced by
successive radioactive decay until a stable nuclide is reached
28. how does the nucleus of an atom change after beta decay
29. what is the length of decay of carbon-14
30. when uranium-238 decays what is the daughter product that is
produced quizlet
31. how does the nucleus of an atom change after beta decay
32. which series consists of radioactive nuclides produced by
successive radioactive decay until a stable nuclide is reached
33. determine what type of decay occurs when thorium-231 undergoes
radioactive decay to form protactinium-231
34. what is the length of decay of carbon 14
35. if an isotope decays by the process of beta emission
36. what type of decay does am-241 undergo to become np-237
37. how does the nucleus of an atom change after beta decay
38. which series consists of radioactive nuclides produced by
successive radioactive decay until a stable nuclide is reached
39. determine what type of decay occurs when thorium-231 undergoes
radioactive decay to form protactinium-231
40. if an isotope decays by the process of beta emission
41. what particle is needed to complete the following nuclear
equation 56/25mn
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