The name of the compound is Thorium (IV) Iodide and formula of the compound ThI₄.
The chemical formula that gives total number of atoms of each element in one molecule of a compound is called Molecular Formula.
The number of proton which is used to separate one element from the other element is called Atomic Number.
here the atomic of the element Q is 90 and the atomic number of R is 53. The element Q is Thorium. Symbol of Thorium is Th. The element R is Iodine. Symbol of Iodine is I.
The valency of thorium is +4 and valency of Iodine is -1. So the formula of the compound is ThI₄.
Thus from the above conclusion we can say that The name of the compound is Thorium (IV) Iodide and formula of the compound ThI₄.
Learn more about the Atomic Number here: https://brainly.com/question/4206478
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