Answer: elems

AnswerCrossword Clue
ELEMSU, V, W, and Y, e.g.
ELEMSSch. designations
ELEMSCertain schools: Abbr.
ELEMSBasic parts: Abbr.
ELEMSRudiments: Abbr.
ELEMSPb, Cs, Fe, etc.
ELEMSGold and silver: Abbr.
ELEMSFe, Ag, Au, etc.
ELEMSChem. class topics