In beta- decay, a neutron becomes a proton, leaving an atom of 24Mg
(magnesium, which has 12 protons compared to 11 for sodium)
In the following decay equation 24 11 Na -> X + e^- + antineutrino, 24 11 Na is the parent nucleus that undergoes beta-minus decay by emitting an electron and an antineutrino to transform into another nucleus, X.
parent element
24 11 Na
(apex)
24 12 mg
The nuclear equation for the beta decay of sodium-24 is: [{}{11}^{24}\text{Na} \rightarrow {}{12}^{24}\text{Mg} + \beta^- + \bar{\nu}_e] where a neutron in the sodium nucleus is converted into a proton, releasing a beta particle (electron) and an antineutrino.
The balanced equation for alpha decay of Astatine-217 can be written as: [^{217}{85}At \rightarrow ^{213}{83}Bi + ^4_2He] In this process, astatine-217 decays into bismuth-213 and an alpha particle (helium-4).
Apply to the equation V=U+at . The answer is 40.
After 84 days, three half-lives of Chromium-51 have passed. Each half-life reduces the amount of Chromium-51 by half. Thus, after three half-lives, only 1/8 (0.5^3) of the original sample will remain. Therefore, 24.0 grams * 1/8 = 3.0 grams of Chromium-51 will remain after 84 days.
First, it isn't very accurate to talk about a radioactive "element"; you should talk about radioactive isotopes. Different isotopes of the same element can have very different behavior in this sense. For example, hydrogen-1 and hydrogen-2 are stable, while hydrogen-3 is not (half-life about 19 years).Individual atoms, in a radioactive isotope, will decay at a random moment. The half-life refers to how long it takes for half of the atoms in a given sample to decay (and convert to some other type of isotope).
parent element
The decay equation you provided is incomplete. Please provide the complete decay equation for further clarification.
The nuclear equation for the beta decay of sodium-24 is: [{}{11}^{24}\text{Na} \rightarrow {}{12}^{24}\text{Mg} + \beta^- + \bar{\nu}_e] where a neutron in the sodium nucleus is converted into a proton, releasing a beta particle (electron) and an antineutrino.
The equation for the beta decay of 24Na is: 1124Na --> 1224Mg + -10e where the e is a negative beta particle or electron.
x-11=13, x-11+11 = 13+11, x=24 No, 28 is not the solution to the equation
Any of the following... 24=n*0.75 0.75*n=24 (75*n)/100=24
5 - 7b + 6 = -24 is a linear equation in one variable. 11 - 7b = -24 Adding -11 to both sides 11 - 7b + (-11) = -24 + (-11) 11 - 7b - 11 = -24 - 11 -7b = -35 Dividing both sides by -7 -7b/(-7) = -35/(-7) b = 5
undefined.
11+11+1+1= 24
The answer to the equation -20 - 4 is -24.
9, 11, 13, 15 The solution equation is A + B = 24 where B = A +2 (the consecutive odd integer) 2A +2 = 24 A = 11, B = 13
Without an equality sign and not knowing the plus or minus values of 3y and 24 it can't be considered to be a straight line equation. But if you mean: 4x+3y = 24 then the coordinates of the line are (6, 0) and (0, 8)