Calcium has 2 valence electrons while oxygen has 6 valence electrons. When adding calcium and oxygen together, they form calcium oxide or CaO, and calciums 2 valence electrons join with oxygens 6 to fill the Lewis structure.
Ca 2+ [O with 8e-] 2-
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Since calcium (Ca) is in Group 2 and oxygen (O) is in Group 16, the electron configuration for Ca is [Ar]4s² and for O is [He]2s²2p⁴. Calcium will lose 2 electrons to achieve a stable electron configuration of [Ar], while oxygen will gain 2 electrons to achieve a stable electron configuration of [He]2s²2p⁶. The electron shell diagram for calcium oxide (CaO) will show the transfer of these electrons from calcium to oxygen, resulting in Ca²⁺ and O²⁻ ions being attracted to each other electrostatically.
Sodium fluoride is an ionic compound. Sodium is a metal that donates an electron, and fluoride is a nonmetal that accepts the electron to form a stable ionic bond.
An ionic compound is formed when one atom donates an electron to another to achieve a stable electron configuration. For example, sodium (Na) will transfer an electron to chlorine (Cl) to form sodium chloride (NaCl), an ionic compound.
The best electron-dot diagram would show ionic bonds with transfer of electrons between atoms, and covalent bonds with sharing of electrons between atoms. Ionic bonds would be represented by complete transfer of electrons from one atom to another, while covalent bonds would be shown as overlapping of electron clouds between atoms.
Yes, CsBr (cesium bromide) is an ionic compound. It is composed of cesium (Cs) and bromine (Br) ions held together by ionic bonds, where Cs loses an electron to become a cation and Br gains an electron to become an anion.
Sodium hydroxide is an ionic compound. Sodium (Na) is a metal that donates an electron to oxygen (O) to form the ionic bond in sodium hydroxide (NaOH).