Chemical Bonds Review Worksheet printable pdf download

Chemical Bonds Review Worksheet

Ch 7 Review

Don’t forget to review all homework problems when studying for the test!!

What is a bond? What types of bonds are there and what determines

the type?

A bond is the force that holds two atoms together and is formed by the

attraction of the positively charged nucleus of one atom and the negatively

charged electrons of another.

The types of bonds are: ionic, covalent & metallic. Ionic bonds are formed

when the difference in electronegativity is greater then 1.67. Covalent bonds

are formed when the difference in electronegativity is less than 1.67

Why do atoms form ions?

Atoms form ions due to their valence electrons and ionization energy. Elements

tend to react to acquire the stable electron structure of a noble gas. In other

words, they want to be stable and “look like” the noble gases.

How is an ion different from an atom? Which is formed by an ionic

bond?

An ion is different from an atom in that an atom as equal numbers of protons

(positively charged particles) and an electron (negatively charged particles)

which gives the atom an overall zero net charge. An ion gains or loses electrons

which give it a positive or negative charge when compared with the number of

protons in the nucleus.

List four properties of ionic bonds?

1. High melting points

2. Soluble in water

3. Well defined crystals

4. Conduct electricity in molten form

How does the formation of an ionic bond differ from the formation of

a covalent bond?

Ionic bonds form through the giving and taking or transferring of electrons. The

ions are held together by the electrostatic attraction between oppositely charges

particles. Covalent bonds are formed by the sharing of electrons.

Chemical Bonds Review Worksheet