Crossword No15
ACROSS
1 Russian chemist (1834–1907) who devised the periodic table of elements (6,9)
9 ___ Sea, saltwater lake east of the Caucasus (7)
10 Component of an atomic nucleus (7)
11 Burrowing mammals of the family Talpidae; SI units of chemical amount (5)
12 Term used in chemistry for two electrons that occupy the same orbital, but have opposite spins (5,4)
13 Avro ___, four-engined RAF bomber in use from 1942 (9)
15 δ (5)
16 To drive away through the action of, for example, a magnetic field; to resist absorption or mixture (5)
18 Treated with drugs…
