The equation for the beta decay of 24Na is: 1124Na --> 1224Mg + -10e
where the e is a negative beta particle or electron.
Sigurd Nolan
daughter element
12 neutrons are in the element sodium.
neg. 24 neg. 24
By definition, halflife is the time during which half of the atoms originally present will undergo radioactive change. Therefore, after 15 hours, the number of atoms of Na24 remaining will be half the original number, 500; after an additional 15 hours, the number of atoms remaining will be 250, and after 45 hours the number remaining will be 125 (this is the answer). (Actually, 1000 atoms is too small a number for the halflife to be exactly manifested, but the earlier part of the answer assumes that it is.) so what he's trying to say is the answer is 125
Sodium, Na, is the element that has eleven protons.
The equation for the negative beta decay of 24Na is: 1124Na --> 1224Mg + -10e Where e represents the beta particle, which can also be viewed as an electron.
In beta- decay, a neutron becomes a proton, leaving an atom of 24Mg (magnesium, which has 12 protons compared to 11 for sodium)
daughter element
parent element
12 neutrons are in the element sodium.
Disadvantages of using Sodium-24Sodium-24 is non-naturally occurring radioisotope, it relies on commercial production in nuclear reactors and poses the same threats that nuclear reactors have. i.e. nuclear fallout and disasters.Having a short lifespan also prevents the area of testing from being very far from the source.Radioisotopes have long term effects and implications to workers handling the substance, without proper care in transportation and handling Sodium24 can cause biological damage, which may result in tissue damage or cancer.
Intestinal secretions have a higher sodium content in 24 hours.
Assuming the equation is: 8x - 38x - 24 = 0 Then: -30x = 24 Answer = x = -24/30 = - 0.8
That IS the equation. You may want to write with the equal sign: 6p = 24
Sodium is not mono isotopic. It has two isotopes. Namely they are sodium-23 and sodium-24.
neg. 24 neg. 24
-24 The equation: -67 + 43 = -24.