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

Electronic configuration of Nobelium is [ Rn ] 5f14 7s2

Electronic configuration in concert of shell is 2,8,18,32,32,8,20

Electronic structure

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.

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