Osmium

Osmium 

Define: Osmium is transition metal.  Place in between Ruthenium and Hassium . It is hard  and slightly brittle in nature. It is most densest element. And non toxic . But it’s oxide form is toxic and causes lung and eye damage. It is very precious metal . It is found in earth crust in the form of miridium minerals .it also obtained from platinum ore and by nickel refining

Discovery : it is discovered in 1803 by scientist Smithson Tennant

Origin of name : The name osmium is derived from Geek word ‘ osme’

Meaning of this word is smell.

Physical properties :

Atomic symbol: Atomic symbol of osmium is  Os

Atomic number : Atomic number of osmium 76

In osmium 76 proton and 76 Electron is present

Atomic weight/ mass: Atomic weight of Osmium is 190.33

In osmium 76 proton and 114 neutron is present.

Position: it is place in 6^th period ( row ) and 8^th column (group)

Block : osmium is placed in d block

Colour :osmium show bluish white colour

Nature : osmium show solid form

Boiling point : boiling point of osmium is 5008 ⁰C

Melting point : melting point of Osmium is 3033 ⁰C

Isotopes: Osmium show 7 stable isotopes

¹⁸⁴Os: atomic weight of this isotope is 183.9 Amu

In this isotope 76 proton ,76 Electron and 108 neutron is present

It is present 0.82% in nature

¹⁸⁶Os: Atomic weight of this isotope is 185.9 Amu

In this isotope 76 proton, 76 Electron and 110 neutron is present

It is present 1.59% in nature

¹⁸⁷Os: atomic weight of this isotope is 186.9 Amu

In this isotope 76 proton, 76 Electron and 111 neutron is present

It is present 1.96% in nature

¹⁸⁸Os: Atomic weight of this isotope is 187.9 Amu

In this isotope 76 proton, 76 Electron and 112 neutron is present

It is present 13.24% in nature

¹⁸⁹Os: atomic weight of this isotope is 188.9 Amu

In this isotope 76 proton, 76 Electron and 113 neutron is present

It is present 16.15% in nature

¹⁹⁰ Os: Atomic weight of this isotope is 189.9 Amu

In this isotope 76 proton, 76 Electron and 114 neutron is present

It is present 26.26% in nature

¹⁹²Os: atomic weight of this isotope is 191.9 Amu

In this isotope 76 proton, 76 Electron and 116 neutron is present

It is present 40.78% in nature.

Chemical properties :

Electronic configuration

Electronic configuration of osmium is [ Xe ] 4f¹⁴ 5d⁶6S²

Electronic configuration in concert of shell is 2,8,18,32,14,2

Electronic structure

Valency : valency of osmium Is 2,3 or 4

Atomic radius : Atomic radius of osmium is 185 Pm

Uses:

• osmium show limited uses
• It is use to make handy alloy
• It is use to formation of pen tips . And instrument pivots
• It is use to make needle and electrical contacts
• It is also use catalyst in chemical industry .

 

Question and Answer:

Q1. Define Osmium

Q2. Who discovered Osmium?

Q2. Physical properties of Osmium

Q4. Write Atomic Symbol of Osmium.

Q5. Write the Atomic number of Osmium.

Q6. On which block Osmium element is present?

Q7. What is the color of Osmium?

Q8. What is the Boiling point of Osmium?

Q9. What is the Melting point of Osmium?

Q10. Write the Isotopes of Osmium.

Q11. Show Electronic configuration of Osmium.

Q12. Write Electronic Structure of Osmium.

Q13. What is the Valency of Osmium?

Q14. Write the uses of Osmium element.

 

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