Beryllium – Learn all details regarding Beryllium in Periodic Table i.e. Atomic Mass, Number, Physical, Chemical properties, Electronic configuration, Valency, Chemical reaction, Uses
Beryllium
Beryllium is 1 st alkaline earth metal in earth crust It is metallic in nature found in earth crust.
Discovery : It is discovered by German chemist Louis vauqyelin and Martin klaproth in 1798
Origin of name : The name is originated from Greek word beryl and berylto .
Physical properties :
1) Atomic symbol : The atomic symbol of beryllium is Be
2) Atomic number : Atomic number of beryllium is 4 It shown 4 proton and 4 electron in their atom
3) Atomic weight / mass : Beryllium show atomic weight is 9.0122 amu In beryllium 4 proton and 5 neutron is present hence atomic weight of beryllium is 9.01
4) Position : it is placed in a periodic table at 2 nd group (column) and 2 nd row (period) It is also known as 2 nd group element.
5) Block : it is placed in s block It’s outer shell 2 electron placed in s block
6) Nature : It is found in solid state . beryllium is an metal it show hard and brittle properties.
7) Colour : It is found in nature at silvery metal colour .
8) Melting point : Beryllium show 12870 c melting point
9) Boiling point : beryllium boil at the temperature of 24710 c
10) Isotopes : Beryllium show 12 isotopes .
But 3 isotopes are stable and other are radioactive in nature .
Stable isotopes
1) Beryllium 7 : in this isotopes 4 proton and 3 neutron are present . Atomic weight of this isotope is 7
2) Beryllium 10 : in this isotopes 4 proton and 6 neutron is present , atomic weight of this isotope is 10
3) Beryllium 9 :. In this 4 proton and 5 neutron present .. atomic weight of this isotope is 9
Chemical properties
1) Electronic configuration :
Beryllium show electronic configuration is 1S2 2S2 Electronic configuration in concert of shell is 2,2 Beryllium show 4 electron . 1st 2 electron place in s orbital and later 2 electron placed in S orbital
2) Electronic structure
3) Valency : valency of beryllium is 2 It have 2 valence electron in outer most shell .
4) Atomic radius : beryllium atom show 112 pm atomic radius .
5) Stability : beryllium is one of the light stable metal due high melting point
Uses :
1) It is widely applicable in industry to make gears and automobiles parts
2) It is mostly used in medical techniques
3) It’s alloy use to make communications tools
4) It is use as an alloying agent
5) It alloy also use to make satellites
Question and Answer:
Q1. Define Beryllium
Q2. Who discovered Beryllium?
Q2. Physical properties of Beryllium
Q4. Write Atomic Symbol of Beryllium.
Q5. Write the Atomic number of Beryllium.
Q6. On which block Beryllium element is present?
Q7. What is the color of Beryllium?
Q8. What is the Boiling point of Beryllium?
Q9. What is the Melting point of Beryllium?
Q10. Write the Isotopes of Beryllium.
Q11. Show Electronic configuration of Beryllium.
Q12. Write Electronic Structure of Beryllium.
Q13. What is the Valency of Beryllium?
Q14. Write the uses of Beryllium element.