There are three atoms in CaCl2 (calcium chloride) - one calcium atom and two chlorine atoms. It might be argued that there are ions inside the molecule instead of atoms. In that case there is one calcium ion and two chlorine ions.
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CaCl2 is a compound (not an element) which is built up of three atoms of two different elements:
1x Ca-atom (= element calcium, Ca, number 20 in the Periodic Table)
and
2x Cl-atoms of the element chlorine (Cl, number 17)
There are 3 atoms present in CaCl2: 1 calcium atom (Ca) and 2 chlorine atoms (Cl).
The correct formula is CaCl2. Calcium chloride, CaCl2, is an ionic compound and contains three ions per formula unit, one Ca2+ ion and two Cl- ions.
CaCl2 is a compound that has 3 atoms in it; one calcium (Ca) atom, and two chlorine (Cl) atoms.
3 atoms. One calcium and two chlorine. However, there are only two different atoms: calcium and chlorine.
There are three atoms in CaCl2 (calcium chloride) - one calcium atom and two chlorine atoms. It might be argued that there are ions inside the molecule instead of atoms. In that case there is one calcium ion and two chlorine ions.
~credits to the original person who actually wrote this.
There are two chlorine atoms in CaCl2.
There are four chlorine atoms in two calcium chloride formula units (CaCl2) because each formula unit contains two chlorine atoms.
The correct formula for calcium chloride is CaCl2, which signifies that one calcium atom is bonded to two chloride atoms.
One calcium atom typically forms ionic bonds with two chlorine atoms to create calcium chloride (CaCl2).
There are three oxygen (O) atoms present in sodium chlorite (NaClO2).