Read aloud paragraphs 30-33 until you have learned them by heart. Then try to complete the passage from memory.After he (1)_________, I thought more and more about Tony’s career. He (2)_____________in my mind. In the end, I think he stood as tall, and as (3)_____, as the greatest American industrialists.They had all reached their success by the same(4)____ and by the same (5)______________: vision, determination, self-control, optimism, self-respect and, (6)_________, integrity.Tony did not begin on the (7)______rung of the ladder. He began in the basement. Tony’s affairs were (8)____; the greatest industrialists’affairs were(9)____. But, after all, the (10)_____________were exactly the same. The only difference was where you put the decimal point.
下列各电子结构式中,表述正确的是( )(1)1s22s1 (2)1s22s22d1 (3)1s22s12p2(4)1s22s22p13d1 (5)1s22s42p2 (6)1s22s22p63s23p63d1
A. 表示基态原子的电子排布只有(1)
B. 表示激发态原子的电子排布有 (2)(3)(4)(6)
C. 原子电子错误排布的只有(5)
下列各组量子数中, 组代表基态Al原子最易失去的电子,
A. 1,0,0,-1/2
B. 2,1,1,-1/2
C. 3,0,0,+1/2
D. 3,1,1,-1/2
元素Ti的电子构型是[Ar]3d24s2,试问这22个电子,下列表述正确的是:
A. 共占据着11个原子轨道.
B. 共填充3个电子层,7个亚层,
C. 价电子为最外层电子,共有2个
D. 单电子轨道有2条。