1,用下列哪种方法得到的码平均长度最短? A: L(0)= L(1)=L(2)=L(3) B: L(0)> L(1)>L(2)>L(3) C: L(1)= 2L(0)=4L(2)=L(3) D: L(0)=2 L(1)=3L(2)=4L(3)
1,用下列哪种方法得到的码平均长度最短? A: L(0)= L(1)=L(2)=L(3) B: L(0)> L(1)>L(2)>L(3) C: L(1)= 2L(0)=4L(2)=L(3) D: L(0)=2 L(1)=3L(2)=4L(3)
下列量子数合理的是? n = 1,l = 0,m = 0|n = l,l = 1,m = 1|;n = 2,l = 0,m = 1 |n = 2,l = 2,m = 2
下列量子数合理的是? n = 1,l = 0,m = 0|n = l,l = 1,m = 1|;n = 2,l = 0,m = 1 |n = 2,l = 2,m = 2
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 = 0③ 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),(2),(4) B: (2),(4),(6) C: (1),(2),(3) D: (1),(3),(5)
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 = 0③ 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),(2),(4) B: (2),(4),(6) C: (1),(2),(3) D: (1),(3),(5)
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}`
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}`
下列各组量子数中错误的是 ( )? n=3,l=2, m=0, ms=+1/2|n=2, l=2, m=-1, ms=-1/2|n=3, l=1, m=-1, ms=-1/2|n=4, l=1, m=0, ms=-1/2
下列各组量子数中错误的是 ( )? n=3,l=2, m=0, ms=+1/2|n=2, l=2, m=-1, ms=-1/2|n=3, l=1, m=-1, ms=-1/2|n=4, l=1, m=0, ms=-1/2
下列各组量子数,不正确的是() A: n=2,l=1,m=0,ms=-1/2 B: n=3,l=0,m=1,ms=1/2 C: n=2,l=1,m=-1,ms=1/2 D: n=3,l=2,m=-2,ms=-1/2
下列各组量子数,不正确的是() A: n=2,l=1,m=0,ms=-1/2 B: n=3,l=0,m=1,ms=1/2 C: n=2,l=1,m=-1,ms=1/2 D: n=3,l=2,m=-2,ms=-1/2
下列量子数合理的是 。 A: n = 2,l = 0,m = 1|qyz|n = l,l = 1,m = 1|qyz|n = 2,l = 2,m = 2 |qyz|n = 1,l = 0,m = 0
下列量子数合理的是 。 A: n = 2,l = 0,m = 1|qyz|n = l,l = 1,m = 1|qyz|n = 2,l = 2,m = 2 |qyz|n = 1,l = 0,m = 0
下列量子数合理的是 。 A: n = 2,l = 0,m = 1 B: n = l,l = 1,m = 1 C: n = 2,l = 2,m = 2 D: n = 1,l = 0,m = 0
下列量子数合理的是 。 A: n = 2,l = 0,m = 1 B: n = l,l = 1,m = 1 C: n = 2,l = 2,m = 2 D: n = 1,l = 0,m = 0
下列量子数合理的是 A: n = 2,l = 0,m = 1 B: n = l,l = 1,m = 1 C: n = 2,l = 2,m = 2 D: n = 1,l = 0,m = 0
下列量子数合理的是 A: n = 2,l = 0,m = 1 B: n = l,l = 1,m = 1 C: n = 2,l = 2,m = 2 D: n = 1,l = 0,m = 0
以下描述原子内电子的状态中,正确的是 A: n = 2,l = 1,ml = -1,ms = -1/2; B: n = 2, l = 0, ml = 1, ms = 1/ 2; C: n = 2,l = -1,ml = -1,ms = -1/2; D: n = 2, l = 2, ml = 1, ms = 1/2
以下描述原子内电子的状态中,正确的是 A: n = 2,l = 1,ml = -1,ms = -1/2; B: n = 2, l = 0, ml = 1, ms = 1/ 2; C: n = 2,l = -1,ml = -1,ms = -1/2; D: n = 2, l = 2, ml = 1, ms = 1/2