1. PRESENTED BY D .M CHANDRASHEKAR & B.N.BHAGYA
ATOMIC STRUCTURE
PRESENTED BY
D .M CHANDRASHEKAR
&
B.N.BHAGYA

2. CONTENT ATOM FUNDAMENTAL PARTICLES NEILS BOHR MODEL ENERGY LEVELS
SUBSHELLS & ORBITALS
ELETRONIC CONFIGURATION
VALENCE ELCETRONS
STRUCTURE OF Na & K ATOMS

3. An atom is the smallest particle of an element.
Do you know the shape of an ATOM !
Eg-iron

4. Electrons revolve round the nucleus in definite orbits By Neil's Bohr

5. ARANENGEMENT OF ELECTRONS
IN ARGON ATOM
L-SHELL 8e
K-SHELL 2e

12. L- shell 8e
K-shell
2 e

15. An atom is made up of ELECTRONS, PROTONS, NEUTRONS Where are the PROTONS & NEUTRONS
located ?

16. Electrons revolve round the nucleus in different orbits or shells,They are named as K,L,M,N & O energy levels.
Find out the maximum no of electrons in different energy levels!

17. Each shell is divided into sub shells called s,p,d & f
SUB SHELLS ORBITALS MAX NO ELECTRONS s p d f S
M-energy level
P-orbital S
L-ENERGY LEVEL
S-orbital
K-ENERGY LEVEL

18. Arrangement of electrons in different energy levels is called electronic configuration.

19. Electrons in the outermost energy level of an atom are known as valence electrons. They participate in the formation of chemical bond. Cl Na
NaCl
VALENCE ELECTRONS

21. BIBLIOGRAPHY