Bombarding sodium-23 with a
proton produces nuclide X and a neutron. What is nuclide X? Answers: magnesium-24 magnesium-23neon-23
sodium-24
none of the aboveThe isotope P
has a half-life of 14.3 days. If a sample originally contained 1.00 g of P,
how much was left after 43 days?Answers:
0.250 g 0.125 g
0.750 g0.500 gIdentify X in the reaction
below. U
+  C
→  Cf
+ XAnswers:
1
alpha particle
3
protons 6
neutrons
6
electronsA .20 gram sample of C-14 was allowed to decay for 3 half-lives.  What mass
of the sample will remain?  Carbon-14 has a half life of 5730
years.  Answers:
0.025
0.050.1
0.01
0.05The isotope Cu
has a half-life of 30 s. If a sample originally contained 48 mg of Cu,
how much time passed before the amount fell to 3 mg?Answers: 120 s240s30 s
60 s(when I did my calculation for the question above, I got 60 seconds)
What radionuclide decays to Fe-56
by beta emission?Answers:  Fe Co Mn Co  MnHow do I know wat it becomes. I put 57 Co 27 and it's wrong.The Cf
to Cf
conversion is accompanied by __________.Answers: an alpha
emission
a
neutron capturean electron
capture
an electron releaseI would greatly appreciate your help...ASAP. Thank you.

Bombarding sodium-23 with a proton produces nuclide X and a neutron. What is nuclide X?[tex]^{23}_{11}Na--^{\beta^+}--> ^{23}_{10}Ne + e^{+}[/tex]answer:  neon~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~The isotope P has a half-life of 14.3 days. If a sample originally contained 1.00 g of P, how much was left after 43 days?0 days >>> 1.00g14,3 days >>> 1.00g :2 = 0,5g(14.3+14.3) days >>> 0.5g : 2 = 0.25g(14.3+14.3+14.3) days >>>  0.25g : 2 = 0.125g answer: 0.125g~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Identify X in the reaction below. U +  C →  Cf + X[tex]^{238}_{92}U ---> ^{251}_{98}Cf+6e^-[/tex]answer: 6 electrons  (so it's beta⁻)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A .20 gram sample of C-14 was allowed to decay for 3 half-lives.  What mass of the sample will remain?  Carbon-14 has a half life of 5730 years.  at the beginning >>> 0.20g1 half-live >>> 0.20g : 2 = 0.10g2 half-live >>> 0.10g : 2 = 0.05g3 half-live >>> 0.05g : 2 = 0.025ganswer: 0.025g~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~The isotope Cu has a half-life of 30 s. If a sample originally contained 48 mg of Cu, how much time passed before the amount fell to 3 mg?0 s (at the beginning) >>> 48mg30s >>>>>>>>>>>>>>> 48mg : 2 = 24mg(30+30)s >>>>>>>>>>> 24mg : 2 = 12mg(30+30+30)s >>>>>>>> 12mg : 2 = 6mg(30+30+30+30)s >>>>> 6mg : 2 = 3mganswer: 30+30+30+30 = 120s~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~What radionuclide decays to Fe-56 by beta emission?[tex]^{56}_{26}Fe--^{\beta^-}-->^{56}_{27}Co + e^-[/tex]answer: ⁵⁶₂₇Co~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~The Cf to Cf conversion is accompanied by __________.Cf to Cf ????  maybe...mistake?