chapter2 - Homework Chapter 2 2.11 a Bismuth b Technetium c...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework Chapter 2 2.11 a) Bismuth b) Technetium c) Bromine 2.19 Potassium. As the effective nuclear charge on the outermost electrons increases across a period, so the covalent radius will decrease, resulting in a smaller radius for calcium. 2.21 With the poorly shielding 3d orbitals having been filled corresponding to the added protons, the effective nuclear charge on the outer (4p) electrons will be increased; hence the covalent radius will decrease. 2.23 Element Li Be B C N O F Ne Z 3 4 5 6 7 8 9 10 1s 2.65 3.65 4.65 5.65 6.65 7.65 8.65 9.65 2s 1.30 1.95 2.60 3.25 3.90 4.55 5.20 5.85 2p 2.60 3.25 3.90 4.55 5.20 5.85 The differences between the Slater’s rules and the Clementi and Ramondi method are small. The difference is the result of a simplifying assumption used by Slater, he assumed that the shielding of the s and p orbitals were the same. Clementi and Ramondi assigned different shielding constants for s and p orbitals. 2.25 For manganese, 4s = 2.95; 3d = 5.60.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online