## Chemistry and Chemical Reactivity (9th Edition)

a) size, shape n describes how many orbitals there are in the shell and $\ell$ describes the number of nodal planes b) 0, 1 and 2 $0\leq\ell\leq n-1$ c) f s - 0, p - 1, d - 2, f - 3 d) 4; 2;-2, -1, 0, 1 or 2 $-\ell\leq m_\ell\leq \ell$ e) leftmost: p, 1,1 rightmost: d, 2, 2 f) d Number of planar nodes $=\ell$ g) 2d, 3f $0\leq\ell\leq n-1$ 2d: $\ell=2,\ n=2$; 3f: $\ell=3,\ n=3$ h) second and third second: $-\ell\leq m_\ell\leq \ell$ third: $m_s=\pm 1/2$ i) (i) 3: $2\ell+1$ orbitals. (ii) 9: $n^2$ orbitals. (iii) none: $0\leq\ell\leq n-1$ (iv) 1, specified orbital