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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.

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lenpollock

Lvl 17
1w ago

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