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It is the oxidation state of the element, usually positive and used with metals. It can also be used without brackets and in superscript.

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Q: What does roman numeral in parenthesis after the name of the element?
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Why is roman numeral placed after the name of most transition element ions?

to present the oxidation numbers of transition elements according to IUPAC System.


What is the name for the roman numeral 70?

LXX.


Claudio in Roman Numerals?

The name Claudio cannot be formed from Roman numerals as, even if you replaced the letter 'u' with the numeral V, there is no Roman numeral with the symbol 'a.'


What is the name of the bar in Roman Numeral?

The bar in Roman Numerals is named vinculum. This bar is placed above a Roman Numeral and indicates a multiple of 1000. The Romans did not use this name for the bar, it was introduced in the Middle Ages.


What does the Roman numeral in the name of a chemical compound represent?

fack


What does xx mean after your name?

XX is the Roman numeral for 20


What does a Roman numerals represent in a chemistry?

A Roman numeral in parentheses, followed by the name of the element, is used for elements that can form more than one positive ion. This is usually seen with metals. Although Roman numerals are used to denote the ionic charge of cations, it is still common to see and use the endings -ous or -ic. These endings are added to the Latin name of the element.


What does a roman numeral after a transition metal in a chemical name mean?

WSS


When is the oxidation state of a metal indicated in the name of a compuond?

The oxidation state of a metal is indicated in the name of a compound if and when that metal has more than one oxidation states. The oxidation state is then indicated by a Roman numeral placed in parenthesis next to the metal (Stock System).


Is there a comma after the name and before the roman numeral in Mark Smith Jones IV?

No.


Former name in parenthesis?

former name does go in parenthesis if stating current name.


Geneologically speaking what is the Roman numeral after a name--like John Doe III-- called aside from Roman numeral?

That would be called a Suffix. The Prefix would be Mr., Sir. etc.