The document provides a comprehensive list of elements along with their atomic numbers, names, and electronic configurations. It includes detailed configurations for various atoms and their ions, along with questions related to electronic configurations and quantum numbers. Additionally, the text outlines tasks to derive quantum numbers for specified electrons in given elements.

1. Orbital Electronic Configuration
Element Name Z Electronic
configuration
H Hydrogen 1 1s1
He Helium 2 1s2
Li Lithium 3 1s2 2s1
Be Beryllium 4 1s2 2s2
B Boron 5 1s2 2s2 2p1 1s2 2s2 2px
1
C Carbon 6 1s2 2s2 2p2
1s2 2s2 2px
1 2py
1
N Nitrogen 7 1s2 2s2 2p3
1s2 2s2 2px
1 2py
1 2pz
1
O Oxygen 8 1s2 2s2 2p4
1s2 2s2 2px
2 2py
1 2pz
1
F Fluorine 9 1s2 2s2 2p5
1s2 2s2 2px
2 2py
2 2pz
1
Ne Neon 10 1s2 2s2 2p6
1s2 2s2 2px
2 2py
2 2pz
2

2. Orbital Electronic Configuration
Element Z Electronic configuration
Sodium 11 1s2 2s2 2p6 3s1
Magnesium 12 1s2 2s2 2p6 3s2
Aluminium 13 1s2 2s2 2p6 3s2 3p1
Silicon 14 1s2 2s2 2p6 3s2 3p2
Phosphorus 15 1s2 2s2 2p6 3s2 3p3
Sulphur 16 1s2 2s2 2p6 3s2 3p4
Chlorine 17 1s2 2s2 2p6 3s2 3p5
Argon 18 1s2 2s2 2p6 3s2 3p6
Potassium 19 1s2 2s2 2p6 3s2 3p6 3d0 4s1
Calcium 20 1s2 2s2 2p6 3s2 3p6 3d0 4s2

3. Orbital Electronic Configuration
Element Z Symbol Electronic configuration
Scandium 21 Sc 1s2 2s2 2p6 3s2 3p6 3d1 4s2 [Ar] 3d1 4s2
Titanium 22 Ti 1s2 2s2 2p6 3s2 3p6 3d2 4s2 [Ar] 3d2 4s2
Vanadium 23 V 1s2 2s2 2p6 3s2 3p6 3d3 4s2 [Ar] 3d3 4s2
Chromium 24 Cr 1s2 2s2 2p6 3s2 3p6 3d5 4s1 [Ar] 3d5 4s1
Manganese 25 Mn 1s2 2s2 2p6 3s2 3p6 3d5 4s2 [Ar] 3d5 4s2
Iron 26 Fe 1s2 2s2 2p6 3s2 3p6 3d6 4s2 [Ar] 3d6 4s2
Cobalt 27 Co 1s2 2s2 2p6 3s2 3p6 3d7 4s2 [Ar] 3d7 4s2
Nickel 28 Ni 1s2 2s2 2p6 3s2 3p6 3d8 4s2 [Ar] 3d8 4s2
Copper 29 Cu 1s2 2s2 2p6 3s2 3p6 3d10 4s1 [Ar] 3d10 4s1
Zinc 30 Zn 1s2 2s2 2p6 3s2 3p6 3d10 4s2 [Ar] 3d10 4s2

4. Home work Questions
a) Write electronic configurations of the following:
No Atom/Ion Electronic configuration
1 Fe2+
2 Fe3+
3 Cu2+
4 Co3+
5 Ni2+
6 Sc3+
7 Ti2+
8 Cr3+
9 Mn2+
10 V5+
11 Zn2+
12 Cu+

5. b) Write all 4 Quantum Numbers of:
No Question Z Quantum numbers
1 19th electron in potassium 19 n= l= ml = ms =
2 10th electron in Neon 10
3 22nd electron in Fe 26
4 25th electron in Mn 25
5 20th electron in Ca 20
6 12th electron in Sulphur 16
7 28th electron in Zn 30
8 2nd electron in Helium 2
9 6th electron in Nitrogen 7
10 21st electron in Sc 21