• 2022-06-16
    下列各组量子数中,哪一组可以描述原子中电子的状态?
    A: `n=2,l=2,m_{l}=0,m_{s}=\frac{1}{2}`
    B: `n=3,l=1,m_{l}=-1,m_{s}=-\frac{1}{2}`
    C: `n=1,l=2,m_{l}=1,m_{s}=\frac{1}{2}`
    D: `n=1,l=0,m_{l}=1,m_{s}=-\frac{1}{2}`
  • B

    内容

    • 0

      下列各组量子数中正确的是 A: n = 3,l = 1,m = -1 B: n = 2,l = 2,m = 0 C: n = 2,l = 0,m = -1 D: n = 2,l = 3,m = 0 E: n = 1,l = 2,m = 1 F: n = 4,l = 0,m =1

    • 1

      原子序数为 19 的元素的价电子的四个量子数为 A: n = 1, l = 0 ,m = 0 , s = +1/2 B: n = 2, l = 1, m = 0 , s =+1/2 C: n = 3, l = 2 ,m = 1, s =+1/2 D: n = 4, l = 0 ,m = 0 , s =+1/2

    • 2

      下列各组量子数哪些是不合理的,为什么? (1) n=2,l=1,m=0; (2) n=2,l=2,m=-1; (3) n=3,l=0,m=0; (4) n=3,l=1,m=+1; (5) n=2,l=0,m=-1; (6) n=2,l=3,m=+2

    • 3

      在下列六组量子数中,正确的是‏① n=3,l= 1,m=-1 ② n = 3,l= 0,m = 0‏ ③ n = 2,l= 2 ,m=-1 ④ n = 2, l = 1 ,m = 0‏‍ ⑤ n = 2,l = 0,m =-1 ⑥ n= 2,l = 3 , m= 2 ‏ A: ①、③、⑤ B: ②、④、⑥ C: ①、②、③ D: ①、②、④

    • 4

      下列各组量子数中正确的是? n = 2,l = 0,m = -1|n = 2,l = 2,m = 0|n = 3,l = 1,m = -1|;n = 2,l = 3,m = 0