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(symbol for ion or ion charge)

Z+ has different usages relating to positive Ions, i.e., atoms or molecules missing one or more electrons, giving it a positive charge. Ways in which it is used:

  • "Z" can be taken as a variable for an unspecified element, with Z+ representing some element with a positive charge typically meaning a charge of +1 (He+, C+), but possibly an unspecified positive number (He+, C2+).
  • Z+ can be the superscript of a chemical formula indicating some unspecified positive number, e.g., CZ+ meaning either C1+ or C2+, etc. for positively ionized Carbon of some positive charge.