Which solid does not contain covalent bonds?

Which is a compound that has giant molecular structure?

The diagram below shows the arrangement of ions in a compound.

Which is the simplest formula of this compound?

The diagram below shows the bonding between P and Q in the covalent molecule, PQ₂. What are the valence electrons of P and Q?

The bonding in sulfuric acid can be represented by the structural formula.

What is the total number of electrons in the covalent bonds surrounding the sulfur atom?

Some elements are able to form compounds by either sharing or the transferring of electrons.

Which element is not able to form compounds in this manner?

Three elements, X, Y and Z have consecutive increasing proton numbers.

If element Y is a noble gas, what will be the formula of the compound formed by X and Z?

The diagram shows the structure of a molecule of a substance.

What are the possible electronic configurations of the elements, X and Y in the given structure.

Two elements X and Y, have electronic configurations 1s²2s²2p⁶3s² and 1s²2s²2p⁶3s²3p⁵ respectively.

Which statements describe the compound formed by X and Y?

I : It is soluble in water

II : It has high melting and boiling points

III : It has a crystal lattice structure.

IV : The elements can be recovered by using electricity.

Which statement gives the most accurate description of metallic bonding?

Which property is common to both diamond and graphite?

Both calcium chloride and potassium chloride are ionic compounds.

Which statements about these compounds are correct?

Solid iron metal, aqueous zinc sulfate, solid graphite and molten magnesium oxide will all conduct electricity.

Which pair will conduct electricity because they contain mobile ions?

Nitrogen forms compounds with the elements hydrogen, oxygen, magnesium and sodium.

These compound have the formule NQ₂, X₃N, Y₃N₂ and NZ₃, where Z represents nitrogen.

What are the identities of Q, X, Y and Z