SE Review - All Topics APA

Front

What is the chemical formula for the ionic compound of aluminum and chlorine?

Back

AlCl₃.

Front

Why do metals conduct electricity?

Back

The electrons are delocalised and able to move.

Front

What is the correct chemical name for the ionic compound Fe₃N₂?

Back

Iron (II) nitride.

Front

What is the name for the compound CrN?

Back

Chromium (III) nitride.

Front

What is the correct name for MgI₂?

Back

Magnesium iodide.

Front

Define ionic compound.

Back

An ionic compound is formed when atoms transfer electrons, resulting in the attraction between positively and negatively charged ions.

Front

What is the significance of the subscript in a chemical formula?

Back

The subscript indicates the number of atoms of each element in the compound.

Front

Explain the term 'delocalised electrons'.

Back

Delocalised electrons are electrons that are not associated with a single atom or bond and can move freely throughout the structure.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the charge of aluminum in AlCl₃?

Back

+3.