Ionic Compounds

Front

What is lattice energy in the context of ionic compounds?

Back

Lattice energy is the energy required to separate one mole of the ions of an ionic compound. It is directly related to the size of the ions and is also affected by the charge of the ions.

Front

Which ionic compound has the lowest lattice energy: NaCl, KBr, RbI, or MgO?

Back

RbI has the lowest lattice energy among these compounds.

Front

What sublevel do transition metals typically lose electrons from first when forming ions?

Back

Transition metals typically lose electrons from the s sublevel first.

Front

What is the formula for an ionic compound formed between magnesium (Mg) and an element X if the formula is Mg2X?

Back

The expected formula for the compound containing sodium (Na) and element X would be Na4X.

Front

How does the size of ions affect lattice energy?

Back

Lattice energy is inversely related to the size of the ions; larger ions result in lower lattice energy.

Front

What is the charge of the cobalt ion in the compound CoP?

Back

The cobalt ion in CoP has a charge of +3 (Co+3).

Front

What factors influence the strength of ionic bonds in ionic compounds?

Back

The strength of ionic bonds is influenced by the charges of the ions and the distance between them, which is affected by the size of the ions.

Front

What is the significance of ionic compounds in everyday life?

Back

Ionic compounds are significant in everyday life as they form salts, which are essential for various biological functions and are used in many industrial applications.

Front

What is the general trend in lattice energy as ionic charge increases?

Back

As the ionic charge increases, the lattice energy increases due to the stronger electrostatic forces between the ions.

Front

What is the relationship between ionic size and the melting point of ionic compounds?

Back

Generally, smaller ionic sizes lead to higher melting points due to stronger ionic bonds.