Chemical Bonding Worksheet Page 4

Grade 9 Science Related Reading/Materials

positive ions

valence electrons

ion

energy

negative ions

1. If a sodium atom loses its only valence electron, it becomes a(n)

___________________________.

2. For electrons to pull away from atoms,

__________________________________ is needed.

3. When atoms lose electrons in an ionic bond, they become

__________________________.

4. Most metals have few ____________________________ and form

positive ions.

5. The energy needed to take electrons from metals comes from the

formation of ___________________________.

Q. Read the description. Then, draw a line from the dot next to each

description to the matching word

1. formed when atoms share

one or more electrons

a. molecule

3. consists of two or more

b. covalent bond

atoms joined together

c. electron-dot diagram

3. used to show the valence

electrons in an atom

0 votes

Parent category: Education