Which has the higher first ionization energy?

Exercise and reference answers

Questions

1. A

   Helium (He)

   B

   Hydrogen (H)

   Higher value

   Helium (He)

2. A

   Neon (Ne)

   B

   Fluorine (F)

   Higher value

   Neon (Ne)

3. A

   Lithium (Li)

   B

   Sodium (Na)

   Higher value

   Lithium (Li)

4. A

   Nitrogen (N)

   B

   Oxygen (O)

   Higher value

   Nitrogen (N)