numb-2

An online crossword puzzle with 15 words. Play it free at AgileCrosswords.com.

Clues

This happens to the reactivity of the Group 1 Alkali Metals as you up the group with decrease in ato
The centre of an atom and electrons orbit around it. (7)
A summary of all the atoms in a molecule or compound (7)
Vertical columns of similar elements in the Periodic Table.
The colour of the precipitate when sodium hydroxide is added to zinc chloride solution. (5)
The formula for the main compound in 'common salt. (4)
The colour of the precipitate formed when sodium hydroxide solution is added to copper sulphate solu
Formula of the compound formed when potassium reacts with water. (3)
The result of chemically combining two or more elements to form a new substance. (8)
Iodine readily forms this coloured vapour on gentle heating. (6)
The colour of solid iodine. (5)
The group number of F, Cl, Br, I and At. (5)
A rapid reaction of a fuel and oxygen. (4)
Not really a transition metal, at the end of the series and doesn't form coloured compounds usually,
Shiny yellow treasure! (4)