Report Abuse. X-radiation (composed of X-rays) is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3 Ã 1016 Hz to 3 Ã 1019 Hz) and energies in the range 120 eV to 120 keV.hen x-rays were first discovered, scientists didn't know much about them, so they called them X-rays because X in science is often used to designate an unknown as in Planet X or solve for X They were also sometimes called Rontgen Rays after the man who discovered them.
1. calcium ion-ion of calcium; a factor in the clotting of blood. factor IV. atomic number 20, Ca, calcium-a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals.. calcium ion-ion of calcium; a factor in the clotting of blood. factor IV. atomic number 20, Ca, calcium-a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals.
Best Answer: An ion is an atom (or group of atoms) that has gained or lost one or more electrons. Many main group elements gain or lose electrons such that they have the same number of electrons as a Noble gas.Calcium, and all of the alkaline earth elements, lose two electrons.Since electrons are negatively charged, the loss of electrons gives the resulting ion a positive charge. So the answer is that the calcium ion has a 2+ charge.A calcium atom has 2 outer shell electrons.) I believe the answer is -2 because of the 2 outer shell electrons...but wouldn't it be different if it is an ION and not just an Atom?