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Which chemical symbols in row 4 of the periodic table do not match up with their element names?

The periodic table is shown.
The chemicals in row 4 are K potassium, Ca calcium, Sc scandium, Ti titanium, V vanadium, Cr chromium, Mn manganese, Fe iron, Co cobalt, Ni nickel, Cu copper, Zn zinc, Ga gallium, Ge germanium, As arsenic, Se selenium, Br bromine, and Kr krypton.

Source: Anton Prohorov. 123RF

(1 point)
Responses

K, Mn, Kr
K, Mn, Kr

K, Fe, Cu
K, Fe, Cu

K, Ni, As

3 answers

In row 4 of the periodic table, the following elements' symbols do not match their element names:

  • K for potassium (correct)
  • Mn for manganese (correct)
  • Kr for krypton (correct)
  • Ca for calcium (correct)
  • Sc for scandium (correct)
  • Ti for titanium (correct)
  • V for vanadium (correct)
  • Cr for chromium (correct)
  • Fe for iron (this is a mismatch; the symbol comes from its Latin name 'ferrum')
  • Co for cobalt (correct)
  • Ni for nickel (correct)
  • Cu for copper (this is a mismatch; the symbol comes from its Latin name 'cuprum')
  • Zn for zinc (correct)
  • Ga for gallium (correct)
  • Ge for germanium (correct)
  • As for arsenic (correct)
  • Se for selenium (correct)
  • Br for bromine (correct)
  • Kr for krypton (correct)

Thus, the mismatches in this row are:

  • Fe (iron)
  • Cu (copper)

Therefore, the answer from your options would be K, Fe, Cu.

Why?

The confusion arises from the fact that some chemical symbols in the periodic table derive from Latin or other languages, which can differ from their English names.

In the case of the elements from row 4 that I mentioned:

  1. Fe (Iron): The symbol "Fe" comes from the Latin word "ferrum" which means iron. Therefore, the symbol does not match the English name "iron."

  2. Cu (Copper): The symbol "Cu" originates from the Latin "cuprum," which refers to copper. Again, this symbol does not correspond to the English name "copper."

The other elements in row 4 have symbols that correspond directly to their English names, so they do not present any discrepancies.

Therefore, the correct identification of mismatched symbols is because they are derived from Latin rather than reflecting the English naming convention used for the element. This is why the symbols K (potassium), Mn (manganese), and Kr (krypton) were not included in this mismatch identification. The chemical symbols K, Fe, Cu identify where the symbols deviate from their English names.