What is 'cr'? If you mean chromium, then the chemical symbol is 'Cr'.
NB For all elemental symbols , single letter symbols are ALWAYS a CAPITAL letter. Two letter symbols are written as, first letter is a CAPITAL letter and the second letter is small/lower case. This is the recognised international standard and as shown in the Periodic Table.
Chromium is a METAL. Ionic or molecular does not come into it.
Ionic is a type of Bonding. Molecular is the adjective for polyatomic substances, irrespective of bonding.
NB Chromium when it bonds with oxygen to form an oxide bonds ionically. , but this is NOT a full definitive answer. Because it can bond covalently in the potassium dichromate.
NNB It is alloyed (Mixed) (NOT Bonded), with steel to form Stainless Steel.
NNNB As a lump of elemental metal it is in METALLIC bonding.
Cr(CN)3 is a molecular compound because it is composed of individual molecules held together by covalent bonds. It does not consist of ions like in ionic compounds.
Cr2O3 is an ionic compound. It is composed of chromium (Cr) and oxygen (O) ions that are held together by ionic bonds.
Any balanced equation for a chemical element; the chemical symbol of chromium is Cr.
Chromium is a metal. It is located in the 4th period of the periodic table. It is the element with the chemical abbreviation Cr.
Cr2O3 is an ionic compound. It consists of chromium ions (Cr3+) and oxide ions (O2-) held together by ionic bonds.
Cr(CN)3 is a molecular compound because it is composed of individual molecules held together by covalent bonds. It does not consist of ions like in ionic compounds.
Cr2O3 is an ionic compound. It is composed of chromium (Cr) and oxygen (O) ions that are held together by ionic bonds.
chromium disodium phosphate
Ionic Molecular
PtO2 is ionic
molecular
Molecular
ionic
ionic
it is ionic
It is molecular
Any balanced equation for a chemical element; the chemical symbol of chromium is Cr.