Ions and ionic compounds

What charge does the sodium ion have?

• 1+

• 1-

• 2+

• 2-

What charge does the chloride ion have?

• 1+

• 1-

• 2+

• 2-

What charge does the magnesium ion have?

• 1+

• 1-

• 2+

• 2-

What charge does the oxide ion have?

• 1+

• 1-

• 2+

• 2-

Non-metals tend to ________ electrons to form negative ions.

• lose

• gain

How does the fluorine atom form its ion?

• The atom loses 1 valence electron.

• The atom gains 1 valence electron.

• The atom loses 7 valence electrons.

• The atom is already stable and will not form ions.

Draw the structure of a sodium ion.

Draw the structure of a chloride ion.

How are negative ions formed?

• By gain of valence electrons.

• By loss of valence electrons.

• By gain of protons

• By loss of protons.

How is sodium chloride formed?

• Sodium transfers one electron to chlorine.

• Chlorine transfers one electron to sodium.

• Sodium transfers two electrons to chlorine.

• Chlorine transfers two electrons to sodium.