Tungsten

Tungsten (w)

Define: Tungsten is transition metal and place in between molybdenum and seaborgium element. It is rarely found element. It is the heaviest metal . It is found in earth crust in the firm of scheelite and wolframiteore. It is also form by reduction of tungsten oxide with hydrogen and carbon It is very durable and string metal . It have highest melting point and lowest vapour pressure

Discovery :.  Tungsten is discovered in 1783 by scientist Juan and FaustoElhuyar

Origin of name :.  The name is derived from Swedish word ‘tungsten‘

Meaning of this word is heavy stone

Physical properties :

Atomic symbol: it is denoted by symbol W

Atomic number : atomic number of Tungsten is 74

In tungsten 74 proton and 74 electron is present

Atomic weight/ mass: Atomic weight of Tungsten is 183.8 Amu

In tungsten 74 proton And 110 neutron is present.

Position : Tungsten is place in periodic table at 6^thperiod ( row ) and 6^th column ( group  )

Block : it is place in d block

Colour : tungsten show silvery white colour

Nature : tungsten present in solid form

Boiling point : Boiling point of tungsten is 5555 ⁰C

Melting point : Melting point of Tungsten is 3414 ⁰C

Isotopes:

Tungsten show 5 stable isotope

¹⁸⁰W: atomic weight of this isotope is 179.9 Amu

In this isotope 74 proton,74 electron and 106 neutron is present

It is present 0.12 % in nature

¹⁸²W: atomic weight of this isotope is 181.9 Amu

In this isotope 74 proton, 74 electron and 108 neutron is present

It is present 26.5 % in nature

¹⁸³W: atomic weight of this isotope is 182.9 Amu

In this isotope 74 proton, 74 electron and 109 neutron is present

It is present 14.3% in nature

¹⁸⁴W: Atomic weight of this isotope is 183.9 Amu

In this isotope 74 proton, 74 electron and 110 neutron is present

It is present 30.6% in nature

¹⁸⁶W: atomic weight of this isotope is 185.9 Amu

In this isotope 74 proton, 74 electron and 112 neutron is present

It is present 28.4 % in nature

Chemical properties :

Electronic configuration : Electronic configuration of tungsten is [ Xe] 4f¹⁴ 5d⁴ 6S²

Electronic configuration in concert of shell is 2,8,18,32,12,2

Electronic structure

Valency : valency of tungsten is 2 or 3 or 4

Atomic radius : Atomic radius of tungsten is  193 Pm

Uses:

• Tungsten use to make fluorescent lightings with calcium and magnesium
• It is use for making arc welding electrodes and heating element
• It’s carbide form use in mining and petroleum industry
• It is use in light bulb as filaments
• It is also use in cathode Ray tube
• Tungsten use as super alloy for coating to the resistance
• It is use to make rings
• When it is bonded with Carbon and carbide tungsten it is use in drill bits and other things

 

Question and Answer:

Q1. Define Tungsten

Q2. Who discovered Tungsten?

Q2. Physical properties of Tungsten

Q4. Write Atomic Symbol of Tungsten.

Q5. Write the Atomic number of Tungsten.

Q6. On which block Tungsten element is present?

Q7. What is the color of Tungsten?

Q8. What is the Boiling point of Tungsten?

Q9. What is the Melting point of Tungsten?

Q10. Write the Isotopes of Tungsten.

Q11. Show Electronic configuration of Tungsten.

Q12. Write Electronic Structure of Tungsten.

Q13. What is the Valency of Tungsten?

Q14. Write the uses of Tungsten element.

 

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