Option B is correct. Caesium bromide, also known as cesium bromide, is an ionic compound of caesium and bromine with the formula CsBr.
An ionic bond is formed when a positively charged ion bonds with a negatively charged ion, in which one atom donates electrons to the other. An example of an ionic bond is the chemical molecule sodium chloride. Carbon shares four valence electrons with each hydrogen atom, resulting in a covalent bond. Methane is the chemical compound's name. Carbon cannot transfer its four valence electrons to each hydrogen atom, which is why it is not an ionic bond. Electrostatic attraction between positive and negative ions holds ionic solids together.
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