In row 4 of the periodic table, the chemical symbols that do not match their element names correctly are:
- K (potassium, which is correct)
- Mn (manganese, which is correct)
- Kr (krypton, which is correct)
Therefore, none of the answers provided in the options are correct.
However, if we examine specific pairs of symbols and element names, we find:
- K for potassium (correct)
- Ca for calcium (correct)
- Sc for scandium (correct)
- Ti for titanium (correct)
- V for vanadium (correct)
- Cr for chromium (correct)
- Mn for manganese (correct)
- Fe for iron (correct)
- Co for cobalt (correct)
- Ni for nickel (correct)
- Cu for copper (correct)
- 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)
If you are looking for a specific mismatch, it appears that none of the symbols in row 4 mismatched those in the provided options. All of them correspond correctly to their respective element names. Thus, no option is correct based on that reasoning.
If you were trying to indicate a specific issue regarding the symbol/elements that differ, they should be:
- K (for potassium)
- Mn (for manganese)
- Kr (for krypton)
In that case, the answer would be "K, Mn, Kr", but all listed are correct versus incorrect comparisons, leading to potential ambiguity depending on how strict the comparisons were meant to be.
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