Plutonium ( Pu ) :


Define: Plutonium is inner transition metal place at 5th number in actinides series. It is radioactive element and man made .it is Highly toxic in nature.  It is found by uranium ores in nuclear weapons.

Discovery :  Plutonium is discovered in 1940 by scientist Glenn seaborgand colleagues.

Origin of name :The name plutonium gives after planet Pluto

Physical properties :

Atomic symbol: Atomic symbol of plutonium is Pu

Atomic number : Atomic number of Plutonium is 94

In Plutonium 94 proton and 94 Electron is present

Atomic weight/ mass: Atomic weight of plutonium is 244 Amu

In plutonium 94 proton and 150 neutron is present

Position : it is place in periodic table at 7th period and actinides group

Block : it is place in f block

Colour :plutonium show silvery grey colour

State : plutonium present in solid form

Boiling point : boiling point of Plutonium is 3228 C

Melting point :melting point of Plutonium is 640 C

Isotopes: plutonium show 4 isotope

  • 238Pu: atomic weight of this isotope is 238.05 Amu

In this isotope 94 proton ,94 electron and 144 neutron is present

  • 239Pu: atomic weight of this isotope is 239.04 Amu

In this isotope 94 proton, 94 electron and 145 neutron is present

  • 240 Pu: Atomic weight of this isotope is 240.05 Amu

In this isotope 94 proton 94 electron and 146 neutron is present

  • 241 Pu: atomic weight of this isotope is 241.05

In this isotope 94 proton 94 electron and 147 neutron is present

Chemical properties :

Electronic configuration

Electronic configuration of Plutoniumis [ Rn ] 5d6 7s2

Electronic configuration in concert of shell is 2,8,18,32,24,8,2

Electronic structure

Valency : Valency of Plutonium is 2

Atomic radius : Atomic radius of Plutonium is 175 Pm


  • It is use as source of energy
  • Plutonium use in Nuclear weapons in world wide
  • It is use as blended oxide fuel in radiological missiles
  • It is use in operating heart pacemaker and in providing addition heat to scuba divers .


Question and Answer:

Q1. Define Plutonium

Q2. Who discovered Plutonium?

Q2. Physical properties of Plutonium

Q4. Write Atomic Symbol of Plutonium.

Q5. Write the Atomic number of Plutonium.

Q6. On which block Plutonium element is present?

Q7. What is the color of Plutonium?

Q8. What is the Boiling point of Plutonium?

Q9. What is the Melting point of Plutonium?

Q10. Write the Isotopes of Plutonium.

Q11. Show Electronic configuration of Plutonium.

Q12. Write Electronic Structure of Plutonium.

Q13. What is the Valency of Plutonium?

Q14. Write the uses of Plutonium element.

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