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Yes, calcium has valence electrons - two, in fact (it is a divalent chemical element).
Calcium IS itself an element so there is no constituent element.
Calcium is an element, so calcium makes up calcium.
Calcium is an element. (Ca on the periodic table).
Calcium donates two electrons (charged -2) in reaction with a nonmetal. Substracting this from the zero (of the non-charged element) it leaves the +2 charge of the ion Ca2+Ca --> Ca2+ + 2e-
Calcium has a chrage of +2 or two positive charges
Calcium is a bivalent chemical element - 2+.
The calcium cation is (Ca)2+.
Yes, calcium has valence electrons - two, in fact (it is a divalent chemical element).
Calcium in milk exists as divalent cations, which must be accompanied by enough anions to balance their electric charge. In that sense, calcium in milk is a compound, but calcium as a chemical element can also exist on its own in another environment.
A Calcium ion with a -1 net charge would have 21 electrons. Calcium as a stable element has 20 electrons.
Calcium IS itself an element so there is no constituent element.
Calcium sulfate (CaSO4) is a compound.
CaO. The charges of the and the cation (the positive element, Ca) and the anion (the negative element, O) must add up to zero.
The element is calcium and the cation is Ca2+ ion
Compound. Elements only have one kind of atom. Calcium carbonate has 3- calcium, carbon and oxygen. CaCO3
Calcium is an element, so calcium makes up calcium.