Fermium ( Fm ):
Define: Fermium is inner transition metal place at 11th number in actinides series. It is heaviest metal . It is found by neutron bombardment of lighter element . It is found in macroscopic quantity. It is toxic in nature .
Discovery : Fermium is discovered in 1952 by scientist Albert Gholso and colleagues
Origin of name : The name Fermium is gives after nuclear physicist Enrico Fermi
Physical properties :
Atomic symbol: atomic symbol of fermium is Fm
Atomic number : atomic number of fermium is 100
In fermium 100 proton and 100 electron is present
Atomic weight/ mass: Atomic weight of fermium is 257Amu
In fermium 100 proton and 157neutron is present
Position : it is place in periodic table at 7th period and actinides group
Block : It is place in f block
Colour : fermium show silvery colour
Nature : fermium is found in solid form
Boiling point :boiling point of fermium is unknown
Melting point : melting point of fermium is 1527 0C
- 257Fm: atomic weight of this isotope is 257.09 Amu
In this isotope 100 proton ,100 electron and 157 neutron is present
Chemical properties :
Electronic configuration of fermium is [ Rn ] 5f12 7s2
Electronic configuration in concert of shell is 2,8,18,32,30,8,2
Valency :valency of Fermium is 2 or 3
Atomic radius : Atomic radius of Fermium is 245 Pm
- it is use only in research field
Question and Answer:
Q1. Define Fermium
Q2. Who discovered Fermium?
Q2. Physical properties of Fermium
Q4. Write Atomic Symbol of Fermium.
Q5. Write the Atomic number of Fermium.
Q6. On which block Fermium element is present?
Q7. What is the color of Fermium?
Q8. What is the Boiling point of Fermium?
Q9. What is the Melting point of Fermium?
Q10. Write the Isotopes of Fermium.
Q11. Show Electronic configuration of Fermium.
Q12. Write Electronic Structure of Fermium.
Q13. What is the Valency of Fermium?
Q14. Write the uses of Fermium element.