Americium ( Am ) :

Americium is inner transition metal place at 6th number in actinides series. It is man made element .and radioactive in nature  . It is transuranic is shiny and toxic . It is found in uranium ores by nuclear process .it is source of x rays

Discovery :  it is discovered in 1944 by scientist Glenn seaborg and colleagues

Origin of name : the name comes from America where it is firstly produce

Physical properties :

Atomic symbol: atomic symbol of Americium is Am

Atomic number : Atomic number of Americium is 95

In Americium 95 proton and 95 electron is present

Atomic weight/ mass: Atomic weight of Americium is 243.06 Amu

In Americium 95 proton and 148 neutron is present

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

Block : it is place in f block

Colour : Americium show silvery colour

State : Americium found in solid form

Boiling point : boiling point of Americium is 2011 0C

Melting point :melting point of Americium is 1176 C


  • 241Am: atomic weight of this isotope is 241. 04 Amu

In this isotope 95 proton ,95 electron and 146 neutron

  • 243Am: atomic weight of this isotope is  243.06 Amu

In this isotope 95 proton, 95 electron and 148 neutron is present

  • 242Am: atomic weight of this isotope is 242.06 Amu

In this isotope 95 proton, 95 electron and 147 neutron is present

Chemical properties :

Electronic configuration

Electronic configuration of Americium is [ Rn ] 5f7 7s2

Electronic configuration in concert of shell is 2,8,18,32,25,8,2

Electronic structure

Valency : valency of Americium is 2

Atomic radius : Atomic radius of Americium is 175 Pm


  • It is use in nuclear power production
  • Americium is use in aircraft batteries .
  • It is use to produce flat glass
  • It is us win radiography and x ray fluorescence


Question and Answer:

Q1. Define Americium

Q2. Who discovered Americium?

Q2. Physical properties of Americium

Q4. Write Atomic Symbol of Americium.

Q5. Write the Atomic number of Americium.

Q6. On which block Americium element is present?

Q7. What is the color of Americium?

Q8. What is the Boiling point of Americium?

Q9. What is the Melting point of Americium?

Q10. Write the Isotopes of Americium.

Q11. Show Electronic configuration of Americium.

Q12. Write Electronic Structure of Americium.

Q13. What is the Valency of Americium?

Q14. Write the uses of Americium element.

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