What is the identity of this nuclide?
A certain stable nuclide, after absorbing a neutron, emits an electron and then splits spontaneously into two alpha particles. Identify the nuclide. I have no idea. I was thinking lithium, but I just guessed.
Best answer awarded 10 points :D GCSE physics pleaseplease help!?
Isotopes are different types of atoms (nuclides) of the same chemical element, each having a different number of neutrons. In a corresponding manner, isotopes differ in mass number (or number of nucleons) but not in atomic number.[1] The number of protons (the atomic number) is the same because that is what characterizes a chemical element. For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14, respectively. The atomic number of carbon is 6, so the neutron numbers in these isotopes of carbon are therefore 12−6 = 6, 13−6 = 7, and 14–6 = 8, respectively. A nuclide is an atomic nucleus with a specified composition of protons and neutrons. The nuclide concept emphasizes nuclear properties over chemical properties while the isotope concept does the converse; for the neutron number has drastic effects on nuclear properties but negligible effects on chemical properties. Since isotope is the older term, it is better known, and it is still sometimes used in contexts where nuclide would be more proper, such as nuclear technology. An isotope and/or nuclide is specified by the name of the particular element (this indicates the atomic number implicitly) followed by a hyphen and the mass number (e.g. helium-3, carbon-12, carbon-13, iodine-131 and uranium-238). When a chemical symbol is used, e.g., "C" for carbon, standard notation is to indicate the number of nucleons with a superscript at the upper left of the chemical symbol and to indicate the atomic number with a subscript at the lower left (e.g. 32He, 42He, 126C, 146C, 23592U, and 23992U). Some isotopes are radioactive and are therefore described as radioisotopes or radionuclides, while others have never been observed to undergo radioactive decay and are described as stable isotopes. For example, 14C is a radioactive form of carbon while 12C and 13C are stable isotopes. There are about 339 naturally occurring nuclides on Earth[2], of which 288 are primordial nuclides and 259 are "stable"[2]. However, some apparently "stable" isotopes are predicted by theory to be radioactive with very long half-lives.[citation needed] Adding in the radioactive nuclides that have been created artificially, there are more than 3100 currently known nuclides.[3]
When n is divided by 4, the remainder is 3. What is the remainder when 2n is divided by 4?
N/4 = x + 3Multiplying both sides with 2, which gives( 2×N )/ 4 = 2X + 6N/2 = 2X + 6Since, 6 is divisible by 4 and gives a remainder of 2, above statement can be written asN/2 = 2X + 1X + 2N/2 = 3X + 2From here we will reach to the solution of the above problem as… 2 is remainder when 2n is divided with 4.ORSay N = 11Dividing N by 4 gives you remainder of 3.Dividing 2N i.e. 22 by 4 gives you remainder of 2.Similarly, dividing 3N i.e. 33 by 4 gives you remainder of 1 only.And so on so forth.