NUCLEUS

Positively charged central core of an atom (7)

Solution has appeared in 2 crosswords (0 across and 2 down):

• Quick crossword No 16,691 — 2023-11-03 00:00:02
  2D: Core (7)
• Quick crossword No 15,971 — 2021-07-14 23:00:25
  14D: Positively charged central core of an atom (7)