Unit 4 Chemical Bonding test

Front

What is an alloy?

Back

An alloy is a mixture of two or more elements, where at least one is a metal. Example: Bronze is an alloy of copper and tin.

Front

What type of bonding occurs when a metal and a nonmetal form oppositely charged ions?

Back

Ionic bonding occurs when a metal and a nonmetal form oppositely charged ions that are strongly attracted to each other.

Front

Where are the electrons most involved in bonding located in an atom?

Back

The electrons most involved in bonding are located in the valence level of the atom.

Front

In which group are halogens found and what is their oxidation number?

Back

Halogens are found in group 17 and have an oxidation number of 1-.

Front

What is the chemical formula for Epsom salts?

Back

The chemical formula for Epsom salts is Mg(SO4).

Front

Define metallic bonding.

Back

Metallic bonding is the force of attraction between free-floating valence electrons and the positively charged metal ions.

Front

What is covalent bonding?

Back

Covalent bonding is the sharing of electron pairs between atoms, typically between nonmetals.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms and are crucial for the formation of chemical bonds.

Front

What is the oxidation number of alkali metals?

Back

The oxidation number of alkali metals is 1+.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons and the attraction between oppositely charged ions, while covalent bonds involve the sharing of electrons.