Calcium is an Alkaline Earth Metal in the second column of the periodic table. This means that calcium has 2 valence electrons it readily gives away in order to seek the stability of the octet. This makes calcium a Ca+2 cation.
Fluorine is a Halogen in the 17th column or p5 group.
Fluorine has 7 valence electrons. It needs one electron to make it stable at 8 electrons in its valence shells. This makes fluorine a F−1 anion.
Ionic bonds form when the charges between the metal cation and non-metal anion are equal and opposite. This means that two F−1 anions will balance with one Ca+2cation.
This makes the formula for calcium chloride, CaF2.
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Explanation: Because the bond forms between a metal (Ca) and a non-metal (O), the bond will most likely be ionic. If a bond forms between two non-metals, then the bond is most likely covalent.
Calcium fluoride is an ionic compound formed due to the transfer of electrons from calcium which is metal to the fluorine which is a non -metal.
Ionic bond formation releases lot of energy which is known as lattice enthalpy of ionic compound.
Ionic Bonding. It is because Ionic compounds occur between metals and non metals. Ca is a metal while O is a non metal
Ionic bonding happens if there's a complete transfer of valence electrons between atoms.