The group 1 metals are known for their distinctive flame colours when their salts are burned in air.  What is the flame colour for lithium

Tetraethyllead (PbEt₄) was used in petrol for many years until it was banned after concerns about environmental pollution.  The alloy NaPb was used to generate PEt₄ using EtCl.  What is the equation for the reaction of NaPb with EtCl to give tetrahethylead (PbEt₄)?

The type of oxide produced changes on descending the group 1 metals because

Burning rubidium in limited amounts of oxygen produces compounds known as

Lithium forms the only stable Group 1 metal nitride, what is its formula?

Charles Pederson prepared a series of macrocyclic ligands known as the crown ethers.  The most stable complex for potassium is

Dissolution of sodium in liquid ammonia initially produces a blue solution which turns gold as the sodium concentration increases.  What is the source of the gold colour?

The naturally occurring mineral, gypsum, is dehydrated to be used in plaster formation.  Its chemical formula is

Lithium and beryllium are anomalous to the rest of their groups and both show _______ in their bonding

Due to a diagonal relationship, lithium and which other element have similar properties?