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4 atoms of helium.
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What is the nuclear reaction for alpha decay of Radium-226?
Since an alpha particle is a helium-4 nucleus, the resulting atom has an atomic mass that is 4 less, so 226 minus 4. Also, to get the element, look up the element number for radium, and subtract two from that.
What is the superscript 4 for helium?
4He or He4. 4 stands for the mass number of Helium Mass number = number of protons + number of neutrons Since the atomic number or number of protons in helium is 2, the number of neutrons in He-4 is also 2.
What are the three steps of the proton-proton chain?
The proton proton chain consists of three chains:85.9 % PP1) H+H -> 2H -> 2H-(e+)-(v) + H -> 3He3He + 3He -> 4He + 2H14 % PP2) 3He + 4He -> 7Be -> 7Be-(e-)-(gamma) -> 7Li -> 7Li-(v)+H -> 4He + 4He0.1 % PP3) 7Be + H -> 8B - (gamma) -> 8Be + (e+) + (v) -> 4He + 4Hewhere i have used the notations:v for neutrino(gamma) for gamma particlee+ for positrone- for electronx% means it accounts for x% of the total conversion of H -> He
What element decays to form helium and francium?
Actinium 225Ac--------alpha (4He) + 221Fr
When curium-242 is bombarded with alpha particles a neutron and are formed?
The nuclear reaction is: 242Cm + 4He = 245Cf + n
What is the equation for decay of californium 251?
251Cf --> 247Cm + 4He 247Cm --> 243Pu + 4He 243Pu --> 243Am + e- 243Am --> 239Np + 4He 239Np --> 239Pu + e- 239Pu --> 235U + 4He 235U --> 231Th + 4He 231Th --> 231Pa + e- 231Pa --> 227Ac + 4He 227Ac --> 223Fr + 4He, 227Th + e- 223Fr --> 219At + 4He, 223Ra + e- 227Th --> 223Ra + 4He 219At --> 215Bi + 4He, 219Rn + e- 223Ra --> 219Rn + 4He 215Bi --> 215Po + e- 219Rn --> 215Po + 4He 215Po --> 211Pb + 4He 211Pb --> 211Bi + e- 211Bi --> 207Tl + 4He, 211Po + e- 207Tl --> 207Pb + e- 211Po --> 207Pb + 4He 207Pb: stable
What is the nuclear reaction for alpha decay of Radium-226?
Since an alpha particle is a helium-4 nucleus, the resulting atom has an atomic mass that is 4 less, so 226 minus 4. Also, to get the element, look up the element number for radium, and subtract two from that.
What is the nuclear decay equation for bismuth-213?
213Bi --> 209Tl + 4He, 213Po + e- 209Tl --> 209Pb + e- 213Po --> 209Pb + 4He 209Pb --> 209Bi + e- 209Bi --> 205Tl + 4He 205Tl, stable
What is the equation for alpha decay of Thorium?
232Th --> 228Ra + 4He 228Ra --> 228Ac + e- 228Ac --> 228Th + e- 228Th --> 224Ra + 4He 224Ra --> 220Rn + 4He 220Rn --> 216Po + 4He 216Po --> 212Pb + 4He 212Pb --> 212Bi + e- 212Bi --> 208Tl + 4He, 212Po + e- 208Tl --> 208Pb + e- 212Po --> 208Pb + 4He 208Pb, stable Other isotopes of Thorium undergo beta decay, but they are not naturally occurring.
How many protons and how many neutrons in the nucleus of a helium 4 atom?
2 protons and 2 neutron
What types of isotope can be formed from helium?
3He, 4He, 5He, 6He, 7He, 8He, 9He, 10He are the known isotopes of helium whereas the most stable ones are 3He, 4He
What radioisotope would correctly complete this nuclear equation lithium-6 neutron------ helium-4?
6Li + 1n --> 7Li --> 3H + 4He Hyrogen-3 or tritium
What is the nuclear decay equation for uranium-238 to strontium-90?
The equation for the beta decay of 87Kr is: 3687Kr --> 3787Rb + -10e where -10e represents a negative beta particle or electron.
What is the superscript 4 for helium?
4He or He4. 4 stands for the mass number of Helium Mass number = number of protons + number of neutrons Since the atomic number or number of protons in helium is 2, the number of neutrons in He-4 is also 2.
How would you represent 4 eighth notes as a fraction?
You could represent it as 4/8.
What are the three steps of the proton-proton chain?
The proton proton chain consists of three chains:85.9 % PP1) H+H -> 2H -> 2H-(e+)-(v) + H -> 3He3He + 3He -> 4He + 2H14 % PP2) 3He + 4He -> 7Be -> 7Be-(e-)-(gamma) -> 7Li -> 7Li-(v)+H -> 4He + 4He0.1 % PP3) 7Be + H -> 8B - (gamma) -> 8Be + (e+) + (v) -> 4He + 4Hewhere i have used the notations:v for neutrino(gamma) for gamma particlee+ for positrone- for electronx% means it accounts for x% of the total conversion of H -> He
What element decays to form helium and francium?
Actinium 225Ac--------alpha (4He) + 221Fr
