Across
- 3. highest electronegativity
- 10. ability of an element to pull bonded pair of electrons from compound
- 11. down the group electronegativity
Down
- 1. affinity energy released to gain electron to form anion
- 2. energy energy required to remove an electron from the isolated gaseous atom
- 4. gases zero electronegativity
- 5. across the period Ionisation potential
- 6. group with positive mono valency
- 7. 18 columns in periodic table
- 8. horizontal rows of elements
- 9. radius distance between centre of nucleus to valence shell of anatom