Lead-207 has 82 neutrons. It is a stable isotope of lead. Because it is non-radioactive, it does not have a half life. It is used in medical and scientific applications. More »

Lead has 125 neutrons. It also has 82 electrons and 82 protons, and its atomic symbol is Pb. Lead is a metal that has been known since ancient times. More »

Silver has 61 neutrons, 47 protons and 47 electrons. The chemical symbol Ag represents silver, stemming from the Latin word "argentum." It has an atomic number of 47. More »

The three parts of an atom are the protons, neutrons and electrons. Atoms make up the basic building blocks of matter and define the structure of elements. These parts were not officially identified until 1932. More »

To draw a Bohr model of an atom, first find the number of protons, neutrons and electrons in the atom from its atomic weight and atomic number. After that, place the neutrons and the protons in the nucleus, and draw the ... More »

Lithium, a member of the alkali metals, has three protons, three electrons and four neutrons. It has an atomic weight of 6.941 atomic mass units and is a solid at room temperature. More »

Platinum is a group ten element with 78 electrons and 117 neutrons; it has the symbol Pt and atomic number 78. With six energy levels, Platinum's electron shell structure is More »