Yttrium :
Yttrium is a transition metal. It is found in earth crust in the form of minerals. I. e. monozite, bustnaesite. It is found in earth crust in small quantity. It is called rare earth metal. Small piece of yttrium is unstable. It is toxic in nature.
Discovery :yttrium is discovered in 1794 by scientists Johan Gadolin
Origin of name :. The name is given to element by city name ‘Ytterby’ in Sweden
Physical properties :
Atomic symbol: yttrium is denoted by symbol ‘Y’
Atomic number : atomic number of yttrium is 39
In yttrium 39 proton and 39 electron is present
Atomic weight/ mass: atomic weight of yttrium is 88.9 Amu
In yttrium 39 proton and 50 neutron is present
position : yttrium is place in periodic table at 3rd column ( group) and 5th period ( row)
Block : it is place in d block
It’s outer shell electron present in d orbit
colour :yttrium show colour silver
Nature : yttrium present in nature at solid stat
Boiling point :boiling point of yttrium is 3345 0C
melting point : melting point of yttrium is 1522 0C
Isotopes:
Yttrium show only one stable isotopes.
89Y: atomic weight of this isotope is 88.9
In this isotope 39 proton, 39 electron and 50 neutron is present
It is present 100%
Radio active isotope is also present
Chemical properties :
Electronic configuration
Electronic configuration of yttrium is [ Kr] 3d 1 5S2
Electronic configuration in concert of shell is 2,8,18,8, 3
Electronic structure
Valency :yttrium show valency 3
In yttrium 3 valence electron present in outer shell
Atomic radius : atomic radius of yttrium is212 pm
Uses:
It’s radio active isotope use in treatment of cancer .
It’s oxide form use to make camera lenses
Yttrium is use to make LED lights
It is also use as catalyst
Yttrium is use to make superconductor .
It is mostly use to production of fake diamond i.e. game stone
It is use to make metal cutting laser
Y- 90 radio isotope use in medical
It is use to make TV Tube e. Red phosphorous .
It is use in energy saving lamps
Question and Answer:
Q1. Define Yttrium
Q2. Who discovered Yttrium?
Q2. Physical properties of Yttrium
Q4. Write Atomic Symbol of Yttrium.
Q5. Write the Atomic number of Yttrium.
Q6. On which block Yttrium element is present?
Q7. What is the color of Yttrium?
Q8. What is the Boiling point of Yttrium?
Q9. What is the Melting point of Yttrium?
Q10. Write the Isotopes of Yttrium.
Q11. Show Electronic configuration of Yttrium.
Q12. Write Electronic Structure of Yttrium.
Q13. What is the Valency of Yttrium?
Q14. Write the uses of Yttrium element.