Einsteinium [ Es ] :
Define: Einsteinium is inner transition metal place at 10th number in actinides series. It is toxic in nature. And it is 7th number transuranic element . It is man made element. It is flammable in nature. It is found by neutron bombardment of plutonium in nuclear reactor
Discovery : it is discovered in 1952 by scientist Albert Ghiorsoand colleagues
Origin of name :the name gives after the honoured of physician Albert Einstein
Physical properties :
Atomic symbol: atomic symbol of einsteinium is Es
Atomic number : Atomic number of Einsteinium is 99
In Einsteinium 99 proton and 99 electron is present
Atomic weight/ mass: Atomic weight of this isotope is 252 Amu
In this isotope 99 proton and 153 neutron is present
Position : it is place in periodic table at 7th period and actinides group
Block : it Is place in f block
Colour :Einsteinium show silvery colou
State : Einsteinium is present in solid form
Boiling point :boiling point of Einsteinium is unknown
Melting point :melting point of Einsteinium is 8600C
Isotopes:
- 252En: atomic weight of this isotope is 252.04 Amu
In this isotope 99 proton,99 electron and 153 neutron is present
Chemical properties :
Electronic configuration
Electronic configuration of Einsteinium is [ Rn] 5f11 7s2
Electronic configuration in concert of shell is 2,8,18,32,29,8,2
Electronic structure
Valency : Valency of Einsteinium is 2 or 3
Atomic radius : Atomic radius of Einsteinium is 245 Pm
Uses:
- It is use in research field
- It is use in synthesis of mendelevium
Question and Answer:
Q1. Define Einsteinium
Q2. Who discovered
Einsteinium?
Q2. Physical properties of Einsteinium
Q4. Write Atomic Symbol of Einsteinium.
Q5. Write the Atomic number of Einsteinium.
Q6. On which block Einsteinium element is present?
Q7. What is the color of Einsteinium?
Q8. What is the Boiling point of Einsteinium?
Q9. What is the Melting point of Einsteinium?
Q10. Write the Isotopes of Einsteinium.
Q11. Show Electronic configuration of Einsteinium.
Q12. Write Electronic Structure of Einsteinium.
Q13. What is the Valency of Einsteinium?
Q14. Write the uses of Einsteinium element.