Chemical bonding summary

A charged particle that has gained or lost electrons is called a _____.

• molecule
• ion
• isotope
• element

If an atom ​ (a)   electrons, it will become negative.

If an atom ​ (b)   electrons, it will become positive.

• gains
• loses
• destroys
• creates

What combination of elements will form a covalent compound?

• Metal and metal.

• Metal and nonmetal.

• Nonmetal and nonmetal.

What charge does magnesium take on?

• +1

• +2

• +3

Ionic bonds are between...

• nonmetals and nonmetals
• carbon and oxygen
• metals and nonmentals
• hydrogen and chlorine

What are valence electrons?

• sum of the protons and neutrons
• protons minus electrons
• electrons in the inner shells
• electrons in the outer shell

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

Predict the bond that will form between Be and F.

• Ionic
• Covalent
• Metallic

High melting & Boiling points is a property of which type of bonding?

• Ionic
• Covalent

What is an example of a covalent compound?

• H + Cl

• H + H

• Mg + Mg