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.
Atomic number is the number of protons in the nuclei of the atoms of a given element. The elements on the periodic table are arranged according to increasing atomic number. Foâ¦r example, carbon's atomic number is 6, so it has 6 protons in the nuclei of all of its atoms. Mass number is the number of protons and neutrons in the nuclei of the atoms of a particular isotope of an element.