Metallic and Ionic

Front

In metals, the _______ electrons form a shared sea of electrons.

Back

Outer electrons are the valence electrons that participate in metallic bonding, creating a 'sea' of delocalized electrons.

Front

What is the formula when sulfur (S) and potassium (K) bond?

Back

K₂S is the correct formula for the ionic compound formed between potassium and sulfur.

Front

What is the charge for a beryllium (Be) ion?

Back

The charge for a Be ion is +2, as it loses two electrons to achieve a stable electron configuration.

Front

In an ionic compound, the total positive charge of all the positive ions ___________ the total negative charge of all the negative ions.

Back

equals; this balance is essential for the stability of ionic compounds.

Front

What is the ion for nitrogen?

Back

Nitrogen typically forms a N³- ion, gaining three electrons to achieve a stable electron configuration.

Front

Define metallic bonding.

Back

Metallic bonding is the electrostatic attraction between positively charged metal ions and a 'sea' of delocalized electrons.

Front

What is an ionic bond?

Back

An ionic bond is the electrostatic attraction between oppositely charged ions, typically formed when electrons are transferred from one atom to another.

Front

What is the charge of a sodium ion (Na)?

Back

The charge of a sodium ion (Na) is +1, as it loses one electron.

Front

What is the formula for the ionic compound formed between magnesium (Mg) and chlorine (Cl)?

Back

The formula is MgCl₂, as magnesium has a +2 charge and each chlorine has a -1 charge.

Front

What is the significance of the octet rule in ionic bonding?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to stability.