Question

Write the chemical name of the following compound:$M{{n}_{3}}{{(B{{O}_{3}})}_{2}}$.

Answer 1

A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.

Complete step by step answer:
A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).
The IUPAC name of the given compound is Manganese Borate or Manganese (II) Borate.

Additional information:
Borates are composed of trigonal planar $B{{O}_{3}}$ or tetrahedral BO4 structural units, joined together via shared oxygen atoms and will be cyclic or linear in structure.
Structure of boric acid, illustrating trigonal planar molecular geometry
The simplest borate anion, the orthoborate(3−) ion, ${{[B{{O}_{3}}]}^{3-}}$, is known in its solid state, for instance , in $C{{a}_{2}}{{(B{{O}_{3}})}_{2}}$, where it adopts an almost trigonal planar structure. It is a structural analogue of the carbonate anion ${{[C{{O}_{3}}]}^{3-}}$, with which it's isoelectronic. Simple bonding theories point to the trigonal planar structure. In terms of valence bond theory, the bonds are formed by using $sp^2$ hybrid orbitals on boron. Some compounds termed orthoborates don't necessarily contain the trigonal planar ion, for instance, gadolinium orthoborate $GdBO_3$ contains the polyborate ${{[{{B}_{3}}{{O}_{3}}]}^{9-}}$ ion, whereas the high-temperature form contains planar ${{[B{{O}_{3}}]}^{3-}}$.

Note: Chemical compounds have a unique and defined chemical structure held together in a defined spatial arrangement by chemical bonds. Chemical compounds can be molecular compounds held together by covalent bonds, salts held together by ionic bonds, intermetallic compounds held together by metallic bonds, or the subset of chemical complexes that are held together by coordinate covalent bonds.