Nobelium ( No ) :
Define: Nobelium is inner transition metal . Place at 13th number in actinides series. It is man made element . It is highly radioactive. It is trans uranium element . It is radioactive element . It is toxic in nature due to reactivity
It is formed by bombarding Of curium with carbon .
Discovery : it is discovered in 1963 by scientist Albert Ghiorso and colleagues
Origin of name : the name nobelium gives to the honour of Albert Nobel ,it is founder of Nobel prize.
Physical properties :
Atomic symbol: Atomic symbol of Nobelium is Nb
Atomic number Atomic number of Nobelium is 102 Amu
In nobelium 102 proton and 102 electron is present
Atomic weight/ mass: Atomic weight of Nobelium is 259 Amu
In nobelium 102 proton and 157 electron is present
Position : it is place in periodic table at 7th period and actinides group
Block : it is place in f block
Colour :Nobelium show silvery white or grey colour
State : Nobelium present in solid
Boiling point :boiling point of Nobelium is unknown
Melting point : melting point of Nobelium is 827 0C
- 259Nb: atomic weight of this isotope is 259.08 Amu
In this isotope 102 proton ,102 electron and 157 neutron is present
Chemical properties :
Electronic configuration of Nobelium is [ Rn ] 5f14 7s2
Electronic configuration in concert of shell is 2,8,18,32,32,8,20
Valency :valnecy of nobelium is 4
Atomic radius : atomic radius of nobelium is 246 Pm
- It is use only in research purposes
Question and Answer:
Q1. Define Nobelium
Q2. Who discovered Nobelium?
Q2. Physical properties of Nobelium
Q4. Write Atomic Symbol of Nobelium.
Q5. Write the Atomic number of Nobelium.
Q6. On which block Nobelium element is present?
Q7. What is the color of Nobelium?
Q8. What is the Boiling point of Nobelium?
Q9. What is the Melting point of Nobelium?
Q10. Write the Isotopes of Nobelium.
Q11. Show Electronic configuration of Nobelium.
Q12. Write Electronic Structure of Nobelium.
Q13. What is the Valency of Nobelium?
Q14. Write the uses of Nobelium element.