Y10 - Ionic Bonding

When ions form, the outer shell of electrons.......

• is full

• contains 8 electrons

• contains 2 electrons

• can contain any number of electrons

What happens to the electrons in the outer shell when ions are formed?

• they are always lost

• they always gain more

• they can lose or gain electrons

• they are shared

What type of ions do metal atoms usually form?

• positive

• negative

What type of ion do non-metal atoms usually form?

• positive

• negative

What is the formula of a sodium ion?

• Na⁺

• Na²⁺

• Na^-

• Na^2-

What is the formula of a chloride ion?

• ^Cl+

• Cl²⁺

• Cl^-

• Cl^2-

What is the formula of a magnesium ion?

• Mg⁺

• Mg²⁺

• Mg^-

• Mg^2-

What is the formula of an oxide ion?

• O⁺

• O²⁺

• O^-

• O^2-

What is the formula of sodium chloride?

• Na₂Cl₂

• Na₂Cl

• NaCl

• NaCl₂

What is the formula of magnesium chloride?

• Mg₂Cl₂

• Mg₂Cl

• MgCl

• MgCl₂