Across
- 2. size of atom across period is ____
- 3. which one is larger, Cl or Cl-
- 4. which ion is larger, Ca2+or Ga3+
- 6. size of atom down the group is ____
- 7. screening effect is the ____ between the electron valence and the nucleus
- 9. (refer to periodic table) which atom is larger, barium or magnesium
Down
- 1. atomic radius ____ from bottom to top
- 4. (refer to periodic table) which atom is smaller, calcium or zinc
- 5. what is the effective nucleus charge for an electron in the n=3 shell in an atom of Aluminium
- 8. Arrange the following atoms and ions order of increasing atomic and ionic radii (B,N,O)