The most common isotope of chromium is Cr-52. To determine the most common isotope of any element, look at the Periodic Table and find the element in question. Chromium is number 24, Cr. The atomic mass is 51.996 amu. That's the average Atomic Mass. The most common isotope has the mass of the nearest whole number to 51.996. The most common isotope of chromium would then be Cr-52, with a mass of 52. Cr has 24 protons, and 24 electrons. Cr-52 would have 52-24= 28 neutrons.
The most common ion for cesium is Cs+ (cesium ion). This ion has a charge of +1.
The most common charge for an iodine ion is -1.
The charge of the molybdenum ion is +2.
there is no element with the symbol R, so perhaps it is meant to read CrCl6 which is Chromium Chloride. Hope this helps! for more info on Chromium Chloride visit http://en.wikipedia.org/wiki/Chromium(III)_chloride
The most common ion for sodium is Na+ (sodium ion), which has a positive charge due to the loss of one electron.
The most common ion for cesium is Cs+ (cesium ion). This ion has a charge of +1.
The most common charge for an iodine ion is -1.
-2 is the most common charge (sulphide ion).
The charge of the molybdenum ion is +2.
The most important cation of chromium is Cr3+; but also exist Cr3+, Cr6+, Cr1+, Cr4+, Cr5+.
A Magnesium ion has a charge of 2+.
there is no element with the symbol R, so perhaps it is meant to read CrCl6 which is Chromium Chloride. Hope this helps! for more info on Chromium Chloride visit http://en.wikipedia.org/wiki/Chromium(III)_chloride
A chromic ion, Cr3+, has a charge of +3 due to the loss of three electrons from a neutral chromium atom.
P3- is the most common ion of phosphor. Howver, when combined with other elements such as oxygen, the phosphate ion PO43- is the most common.
The formula of chromium ion depends on its charge. For example, chromium in the +3 oxidation state forms the chromic ion (Cr3+), while chromium in the +6 oxidation state forms the chromate ion (CrO4^2-).
The most common ion for sodium is Na+ (sodium ion), which has a positive charge due to the loss of one electron.
it is a chromium 2 as a good point of reference, and if you don't know the specific charge of an atom, check the ion to which it is bound: the phosphide ion is most commonly charged as a 3- ion because its period is has 3 electrons more than it needs to form a complete octet 2 phosphide ions (per your empirical formula) would have a total ionic charge of 6- if you distribute the (6-) charge evenly through the 3 chromium ions in your empirical formula, then each chromium ion would have to have a charge of 2+ in order for the ionic salt to be neutrally charged. therefore the chromium is chromium (II)