Lawrencium ( Lr ) :
Define: Lawrencium is inner transition metal it is place at 14th number in actinides series. It is man made element. It is transuranic element .
Discovery : It is discovered in 1965 by Georgyf lerovand colleagues and Aubert Ghiorro and colleagues.
Origin of name :the name lawrencium gives after Emest O. Lawrence and investors of cyclotoron.
Physical properties :
Atomic symbol: Atomic symbol of lawrencium is Lr
Atomic number : Atomic number of Lawrencium is 103
In lawrencium 103 proton and 103 electron is present
Atomic weight/ mass: Atomic weight of Lawrencium is 262 Amu.
In lawrencium 103 proton and 159 neutron is present
Position : it is place in the periodic table at 7th period and actinides group
Block : it is place in f block
Colour :lawrencium show silvery white colour
State : lawrencium present in solid form
Boiling point :boiling point of Lawrencium is didn’t know
Melting point :melting point of Lawrencium is 1627 0C
Isotopes:
- 262Lr: atomic weight of Lawrencium is 262.1 Amu
In this isotope 103 proton 103 Electron and 159 neutron is present
Chemical properties :
Electronic configuration
Electronic configuration of Lawrencium is [ Rn ] 5f 147s2 7p1
Electronic configuration in concert of shell is 2,8,18,32,32,8,3
Electronic structure
Valency : Valency of Lawrencium is 3
Atomic radius : Atomic radius of Lawrencium is 246 Pm
Uses:
- Lawrencium is produce in small amount use only in research field
Question and Answer:
Q1. Define Lawrencium
Q2. Who discovered Lawrencium?
Q2. Physical properties of Lawrencium
Q4. Write Atomic Symbol of Lawrencium.
Q5. Write the Atomic number of Lawrencium.
Q6. On which block Lawrencium element is present?
Q7. What is the color of Lawrencium?
Q8. What is the Boiling point of Lawrencium?
Q9. What is the Melting point of Lawrencium?
Q10. Write the Isotopes of Lawrencium.
Q11. Show Electronic configuration of Lawrencium.
Q12. Write Electronic Structure of Lawrencium.
Q13. What is the Valency of Lawrencium?
Q14. Write the uses of Lawrencium element.