Ionic Bonding - Knowledge check

The positive ions tend to _____________ electrons.

• lose

• gain

The negative ions tend to _____________ electrons.

• lose

• gain

Why are sodium and chlorine attracted to each other?

• they have opposite charges

• they both have negative charges

• they both have positive charges

Valence electrons are found

• in the innermost energy level of an atom

• in the middle energy levels of an atom

• in the outermost energy levels of an atom

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

Why do all bonds form?

• so the number of protons equals the number of electrons

• so an atom can become unstable

• to fill the outermost energy level

Ionic bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

How are ionic bonds formed?

• Transfer of electrons
• Sharing of electrons

What is the charge on a Hydrogen ion?

• +1
• 1
• 2

How many valence electrons does calcium have?

• 2
• 4
• 6
• 7