quantum numbers
azimuthal quantum number (l) of 3s is ...
0
regions of space around the nucleus of an atom where an electron is likely to be found is known as...
orbital
electronic configuration of 2H1 is ...
1s2
period of an element is represented by ...
number of shells
Cation formed when an element .... electrons
released
the possible value of azimuthal quantum numbers for subshell 4d are ...
-2, -1, 0, 1, 2
number of orbitals in subshell 4f is ...
7
electronic configuration of 12 C 6 is ...
1s2 2s2 2p2
period and group of 12C6 is
1s2 2s2 2p4
period 2
group VI A
quantum number of the last electron of 10Ne is
1s2 2s2 2p6
n=2, l= 1, m=1,s= -1/2
the four quantum numbers for the last electron in subshell 2p5 is ...
n = 2, l= 1, m= 0, s= -1/2
the statement of Pauli exclussion principle is ...
no two electrons can have the same values for n, l, m, and s.
the electronic configuration of 12 Mg 2+ is the same with electronic configuration of ...
2He 10Ne 18Ar 36 Kr 54Xe 86Rn
10Ne
The last subshell of electronic configuration of an atom is 4p3 .atomic number of the atom is ...
33
the last electron of an atom has the quantum numbers of 3,2,2, -1/2 .
the atomic number of the atom is ...
30Zn= [Ar]4s2 3d10
n= 3, l= 2, m= 2, s= -1/2
-> 3d10
quantum number for the last electron of X+2 is 3,2,-2,- 1/2
atomic number of X is..
56
quantum number for the last electron of X+2 is 3,2,-2,- 1/2
X+2 = [Ar]3d6
X = [Ar]4s2 3d6-> 18 + 8
electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels
The statement above is known as ...
Aufbau principle
the last subshell in electronic configuration of 88Ba
6s2
shorthand configuration of 47 Ag is...
[Kr]5s1 4d10
quantum number of the last electrons of an ion X+2 is 4,1,1,-1/2.
atomic number of atom X is ...
n=4,l=1,m=1,s=-1/2
4p6
X+2 = ... 4p6
X = 4p6 5s2
[Ar] 4s2 3d10 4p6 5s2 -> 38
number of unpaired electrons in 87Fr is ...
1
complete electronic configuration of 11Na + is ...
Na 1s2 2s2 2p6 3s1
Na+ 1s2 2s2 2p6
number of unpaired electrons in 55Cs is ...
[Xe]6s1
1 unpaired electron