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Naming Monoatomic Cations quiz

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  • How do you name a monoatomic cation with only one possible charge?
    You use the element's name followed by 'ion'; for example, 'magnesium ion'.
  • When do you use Roman numerals in naming cations?
    Roman numerals are used when the metal can have more than one possible charge to indicate which charge is present.
  • What is the name for a vanadium ion with a 3+ charge using the systematic method?
    It is called vanadium(III) ion.
  • Which groups of metals do not require Roman numerals when naming their cations?
    Metals in groups 1A, 2A, and 3A do not require Roman numerals because they have fixed charges.
  • What suffix is used in the older naming system for the cation with the lesser charge?
    The suffix '-ous' is used for the cation with the lesser charge.
  • What suffix is used in the older naming system for the cation with the greater charge?
    The suffix '-ic' is used for the cation with the greater charge.
  • What is the common name for Cr2+?
    Cr2+ is called the chromous ion.
  • What is the common name for Cr3+?
    Cr3+ is called the chromic ion.
  • What are the common names for Cu+ and Cu2+?
    Cu+ is cuprous ion and Cu2+ is cupric ion.
  • What are the common names for Fe2+ and Fe3+?
    Fe2+ is ferrous ion and Fe3+ is ferric ion.
  • Why do some element symbols not match their English names in common cation names?
    Their symbols are based on their Latin root names, which are reflected in the common names.
  • What are the systematic names for Sn2+ and Sn4+?
    Sn2+ is tin(II) ion and Sn4+ is tin(IV) ion.
  • What are the common names for Sn2+ and Sn4+?
    Sn2+ is stannous ion and Sn4+ is stannic ion.
  • How is mercury(I) ion different from other cations?
    Mercury(I) exists as a pair (Hg2^2+), so each mercury has a +1 charge, and it's called mercurous ion.
  • What is the common name for Hg2+?
    Hg2+ is called the mercuric ion.