Picked up ruthenium, hydrogen, and also ________? (7)
I believe the answer is:
sulphur
'?' is the definition.
I can't tell whether this definition defines the answer.
'picked up ruthenium hydrogen and also' is the wordplay.
'picked up' says the letters should be written in reverse.
'ruthenium' becomes 'ru' (Ru is the chemical symbol for ruthenium).
'hydrogen' becomes 'h' (chemical symbol).
'and' means one lot of letters go next to another.
'also' becomes 'plus' (synonyms).
'ru'+'h'+'plus'='ruhplus'
'ruhplus' in reverse letter order is 'SULPHUR'.
Can you help me to learn more?
(Other definitions for sulphur that I've seen before include "Element, atomic no. 16" , "Chemical used in match heads" , "Brimstone" , "Highly flammable yellow element" , "S (chem.)" .)