[問題] 三個小問題

[BIEGABOY (BIEGABOY)]

1.請問填路易式點的時候，是要用類似罕德定則的方式填嗎??
  ex.Si  是每邊都一顆，還是可以填一邊兩顆，其餘兩邊各一顆??

2.What would be the best description of Einstein's explantion of the
  photoelectric effect?
a.electrons have a definite mass
b.ejection of photons occurs when the intensity of light increases beyond
  a certain minimun
c.light consists of "particles" with a definite mass
d.light consists of "particles" with a definite energy
e.ejection of photons occurs when the energy of the photon is greater than
  a certain minimun

我是選d，有人可以解釋一下嗎?

3.PCl5 is molecule with a trigonal bipyramidal geometry. There are two types
  of bond lenths in this structure: axial and equatorial. Predict which one
  is longer?

我是覺得在axial上的鍵長會比較長，因為它的斥力會比equatorial來的小
不是很確定...有請好心人解說 謝謝!!

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推 cen71:1的填法我看講義都是一顆一顆點 只有He是兩顆在同邊
→ cen71:2愛因斯坦是主張 光可視為不連續的小能塊 也就是波粒二像性
推 cen71:我也覺得是d~ ~
→ cen71:3 軸鍵與赤道鍵的差別在於軌域的S% 因為軸上S%較高 所以鍵能
→ cen71:                                         這邊是赤道
→ cen71:赤道鍵較強 鍵長較短