how many protons are in a lithium nucleus
Isotopes of lithium Lithium-4 contains three protons and one neutron. It is the shortest-lived known isotope of lithium, with a half-life of about 91 yoctoseconds, 6977909999999999999♠9.1×10−23 seconds and decays by proton emission to helium-3.[3] Lithium-4 can be formed as an intermediate in some nuclear fusion reactions.
Yuga There are four Yugas in one cycle:
Periodic table Each chemical element has a unique atomic number (Z) representing the number of protons in its nucleus.[n 2] Most elements have differing numbers of neutrons among different atoms, with these variants being referred to as isotopes. For example, carbon has three naturally occurring isotopes: all of its atoms have six protons and most have six neutrons as well, but about one per cent have seven neutrons, and a very small fraction have eight neutrons. Isotopes are never separated in the periodic table; they are always grouped together under a single element. Elements with no stable isotopes have the atomic masses of their most stable isotopes, where such masses are shown, listed in parentheses.[4]
.properties Each parameter is stored as a pair of strings, one storing the name of the parameter (called the key), and the other storing the value.