From the elements in this list, identify one element in each case that matches the description. Give the symbol of the element. An element that sinks in cold water and reacts readily with it.
An element whose oxide is a reducing agent.
The element with the highest first ionisation energy.
The Period 3 metal (Na to Ar) with the smallest cation.
The element with a giant molecular structure that forms an oxide with the same giant molecular structure.
The Period 3 element (Na to Ar) with the highest electrical conductivity.
From the Periodic Table section above, identify two elements whose hydrides form hydrogen bonds between molecules.
Using the elements in Period 3 (Na to Ar), identify an oxide that shows no reaction with water. In each case, give the formula of the oxide(s).
Two acidic oxides produced by the same element.
An oxide that dissolves easily in water to produce a strongly alkaline solution.
An oxide that is amphoteric.