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