As of 2013, the United States spends about $554.2 billion annually to fund its military forces, and appropriates approximately $88.5 billion to fund Overseas Contingency Operations. Put together, the United States constitutes roughly 39 percent of the world's military expenditures.
the number of protons in the nucleus of an atom of a particular element. In a neutral atom, the atomic number equals the number of electrons. See also atom, electron, proton.
The atomic number of an element is the number of protons in the nucleus of the atom; each element has its own distinct number. The atomic mass is the mass of the nucleus of th â¦ e atom: protons and neutrons. One proton is equivalent to one unit of mass, as is a neutron.