薯条炸制__分钟,在装袋区保存__分钟?() A: 3’05;7 B: 3’05;10 C: 3’15;7 D: 3’15;10
薯条炸制__分钟,在装袋区保存__分钟?() A: 3’05;7 B: 3’05;10 C: 3’15;7 D: 3’15;10
下列各量子数合理的是:( ) A: n=2、l=0、m=+1、ms=-1/2. B: n=2、l=1、m=0、ms=+1/2; C: n=3、l=0、m=0、ms=0; D: n=3、l=3、m=-1、ms=-1/2;
下列各量子数合理的是:( ) A: n=2、l=0、m=+1、ms=-1/2. B: n=2、l=1、m=0、ms=+1/2; C: n=3、l=0、m=0、ms=0; D: n=3、l=3、m=-1、ms=-1/2;
写出下列各种情况的合理量子数。 (1)n = ,l = 2, m = 0, ms = +1/2 (2)n = 3,l = ,m = 1,ms = -1/2 (3)n = 4,l = 3,m = 0,ms = (4)n = 2,l = 0,m = ,ms = +1/2 (5)n = 1,l = ,m = 0 ,ms =
写出下列各种情况的合理量子数。 (1)n = ,l = 2, m = 0, ms = +1/2 (2)n = 3,l = ,m = 1,ms = -1/2 (3)n = 4,l = 3,m = 0,ms = (4)n = 2,l = 0,m = ,ms = +1/2 (5)n = 1,l = ,m = 0 ,ms =
下列四个量子数正确的组合正确的是() A: n=3,l=-3,m=0,ms=0; B: n=4,l=3,m=-1,ms=+1/2; C: n=2,l=0,m=-1,ms=-1/2; D: n=3,l=2,m=2,ms=+1/2;
下列四个量子数正确的组合正确的是() A: n=3,l=-3,m=0,ms=0; B: n=4,l=3,m=-1,ms=+1/2; C: n=2,l=0,m=-1,ms=-1/2; D: n=3,l=2,m=2,ms=+1/2;
下列量子数取值不正确的是() A: n=3,l=3,m=1,ms=-1/2 B: n=3,l=2,m=1,ms=-1/2 C: n=3,l=1,m=1,ms=-1/2 D: n=3,l=0,m=0,ms=-1/2
下列量子数取值不正确的是() A: n=3,l=3,m=1,ms=-1/2 B: n=3,l=2,m=1,ms=-1/2 C: n=3,l=1,m=1,ms=-1/2 D: n=3,l=0,m=0,ms=-1/2
下列四个量子数组合正确的是 A: n = 3, l = -3, m = 0, ms = 0 B: n = 4, l = 3, m = -1, ms = +1/2 C: n = 2, l = 2, m = -1, ms = -1/2 D: n = 3, l = 2, m = 3, ms = +1/2
下列四个量子数组合正确的是 A: n = 3, l = -3, m = 0, ms = 0 B: n = 4, l = 3, m = -1, ms = +1/2 C: n = 2, l = 2, m = -1, ms = -1/2 D: n = 3, l = 2, m = 3, ms = +1/2
10:05 A: 10:30 B: 10:05
10:05 A: 10:30 B: 10:05
下列各组表示核外电子运动状态的量子数中合理的是 A: n = 3,l = 3 ,m = 2,ms =-1/2 B: n = 2,l = 0 ,m = 1,ms =1/2 C: n = 1,l = 0 ,m = 0,ms =1/2 D: n =0,l = 0 ,m = 0,ms =-1/2
下列各组表示核外电子运动状态的量子数中合理的是 A: n = 3,l = 3 ,m = 2,ms =-1/2 B: n = 2,l = 0 ,m = 1,ms =1/2 C: n = 1,l = 0 ,m = 0,ms =1/2 D: n =0,l = 0 ,m = 0,ms =-1/2
表示电子运动状态的四个量子数不合理的是: A: n=2,l =1,m = 0,ms = -1/2 B: n=2,l =2,m = 0,ms = -1/2 C: n=3,l=0,m =0 ,ms = +1/2 D: n=3,l=1,m = 0,ms = +1/2
表示电子运动状态的四个量子数不合理的是: A: n=2,l =1,m = 0,ms = -1/2 B: n=2,l =2,m = 0,ms = -1/2 C: n=3,l=0,m =0 ,ms = +1/2 D: n=3,l=1,m = 0,ms = +1/2
某三相三线制对称感性负载电路,线电压为380V,若因故U相电源断路,则各相相电压为()。 A: Uu=Uv=Uw不变 B: Uu=0,Uv=Uw不变 C: Uu=0,Uv=Uw=190V D: Uu=0,Uv=Uw=380V
某三相三线制对称感性负载电路,线电压为380V,若因故U相电源断路,则各相相电压为()。 A: Uu=Uv=Uw不变 B: Uu=0,Uv=Uw不变 C: Uu=0,Uv=Uw=190V D: Uu=0,Uv=Uw=380V