Pick the higher ionisation energy

Exercise and reference answers

Questions

1. A

   Helium (He, ~2372 kJ/mol)

   B

   Hydrogen (H, ~1312 kJ/mol)

   Higher value

   Helium (He, ~2372 kJ/mol)

2. A

   Neon (Ne, ~2081 kJ/mol)

   B

   Fluorine (F, ~1681 kJ/mol)

   Higher value

   Neon (Ne, ~2081 kJ/mol)

3. A

   Sodium (Na, ~496 kJ/mol)

   B

   Lithium (Li, ~520 kJ/mol)

   Higher value

   Lithium (Li, ~520 kJ/mol)

4. A

   Nitrogen (N, ~1402 kJ/mol)

   B

   Oxygen (O, ~1314 kJ/mol)

   Higher value

   Nitrogen (N, ~1402 kJ/mol)

Instructions

Two elements appear each round. Tap the one whose ionisation energy is higher.