7. Which ofthe following Statements is Ase? 【106 台聯大(Al基
(用) an orbital can accommodate at mosttwo eleetrons.
(8) the eleetron density atra.pointis proportionalto 2 atthat point.
S) (G) the spin quantum number ofan electron must be either +1/2 or -1/2,
(D) a 2p orbital is more pentrating than a 2s ; that is, it has a higher electrgi
density near the nucleus and inside the charge cloud ofa 1s orbital,
(R) in the usual order of filling, the 6s orbial is filled before the 4f orbital
Ans.: (D)
