Uranium ( U ) :
Define: Uranium is inner transition metal . It is place at 3rd number in actinides series. It is radioactive element and toxic in nature. It is rarely found element. It is found from Uranite( pitchblende ) , brannerute and carnotite minerals .it is also found in phosphate rock and monazite sands.
Discovery : it is discovered in 1789 by scientist Martin Heinrich Klaproth.
Origin of name : the name uranium gives after the planet Uranus
Physical properties :
Atomic symbol: Atomic symbol of Uranium is U
Atomic number : Atomic number of uranium is 92
In uranium 92 proton and 92 electron is present
Atomic weight/ mass: Atomic weight of Uranium is 238.03 Amu
In uranium 92 proton and 146 neutron is present
Position : it is place in periodic table at 7th period and actinides group
Block : it is place in f block
Colour : uranium is silvery grey in colour
State : uranium show solid form
Boiling point : Boiling point of Uranium is 4131 0C
Melting point : melting point of Uranium is 1135 0C
Isotopes: uranium show 4 stable radioactive isotope
- 223U: atomic number of uranium is 223.04 Amu
In this isotope 92 proton,92 electron and 131 neutron is present
- 234U: atomic weight of this isotope is 234.02 Amu
In this isotope 92 proton, 92 electron and 142 neutron is present
- 235U: atomic weight of this isotope is 235.04 Amu
In this isotope 92 proton ,92 electron and 143 neutron is present
- 236 U : atomic weight of this isotope is 236.04 Amu
In this isotope 92 proton, 92 electron and 144 neutron is present.
Chemical properties :
Electronic configuration
Electronic configuration of uranium is [ Rn ] 5f3 6d1 7s2
Electronic configuration in concert of shell is 2,8,18,32,21,9,2
Electronic structure
Valency :valency of uranium is 2,3,4
Atomic radius : Atomic weight of this isotope is 175 Pm
Uses:
- Uranium use in military purpose as a nuclear weapons
- Uranium 235 isotope use as ballast for ships and aircraft
- It is mostly use in ammunition armour
- Heat produce by uranium is use to generate electric power
- Uranium act as nuclear fuel
- Uranium use as pigment for glass .
- It is use in still alloy to hardening and strengthen steel .
- It is use in x- ray
- Depleted uranium is used to protect tanks
Question and Answer:
Q1. Define Uranium
Q2. Who discovered Uranium?
Q2. Physical properties of Uranium
Q4. Write Atomic Symbol of Uranium.
Q5. Write the Atomic number of Uranium.
Q6. On which block Uranium element is present?
Q7. What is the color of Uranium?
Q8. What is the Boiling point of Uranium?
Q9. What is the Melting point of Uranium?
Q10. Write the Isotopes of Uranium.
Q11. Show Electronic configuration of Uranium.
Q12. Write Electronic Structure of Uranium.
Q13. What is the Valency of Uranium?
Q14. Write the uses of Uranium element.