Curium ( Cm ):
Define: Curium is inner transition metal place at 7th number in actinides series. It is radioactive element and rare earth metal. It is toxic in nature . It is expensive. It is formed by neutron bombardment on plutonium in nuclear reactor .
Discovery : it is discovered in 1944 by scientist Glenn seaborg and colleagues
Origin of name :The name curium is gives in the honour of Pierre and Marie Curie
Physical properties :
Atomic symbol: Atomic symbol of curium is Cm
Atomic number : Atomic number of curium is 96
In curium 86 proton and 86 Electron is present
Atomic weight/ mass: atomic mass of curium is 247.07 Amu
In curium 96 proton and 157 neutron is present
Position : it is place in periodic table at 7th period and actinides series
Block: it is place in f block
Colour :curium show silvery colour
State : curium present in solid form
Boiling point : boiling point of curium is 3100 0C
Melting point :melting point of curium is 1345 0C
- 244Cm: atomic weight of this isotope is 244.06 Amu
In this isotope 96 proton,96 electron and 148 neutron is present
- 245Cm: atomic weight of this isotope is 245.05 Amu
In this isotope 96 proton, 96 electron and 149 neutron is present
- 246Cm: atomic weight of this isotope is 246.06
In this isotope 96 proton 96 electron and 150 neutron is present
- 247Cm: atomic weight of this isotope is 247.05 Amu
In this isotope 96 proton, 96 electron and 151 neutron is present
- 248Cm: atomic weight of this isotope is 248.05 Amu
In this isotope 96 proton, 96 electron and 152 neutron is present
Chemical properties :
Electronic configuration of curium is [ Rn ] 5f7 6d 17s2
Electronic configuration in concert of shell is 2,8,18,32,25,9,2
Valency : Valency of curium is 3
Atomic radius : radius of curium is 245 Pm
- It is use to produce heat and energy
- It is use as Alpha particles source in x ray spectrometer
- It is provide power to electrical equipment used in space missions.
Question and Answer:
Q1. Define Curium
Q2. Who discovered Curium?
Q2. Physical properties of Curium
Q4. Write Atomic Symbol of Curium.
Q5. Write the Atomic number of Curium.
Q6. On which block Curium element is present?
Q7. What is the color of Curium?
Q8. What is the Boiling point of Curium?
Q9. What is the Melting point of Curium?
Q10. Write the Isotopes of Curium.
Q11. Show Electronic configuration of Curium.
Q12. Write Electronic Structure of Curium.
Q13. What is the Valency of Curium?
Q14. Write the uses of Curium element.