Zinc – Learn all details regarding Zinc in Periodic Table i.e. Atomic Mass, Number, Physical, Chemical properties, Electronic configuration, Valency, Chemical reaction, Uses
Zinc :
Zinc is 10th number of transition element . It is metallic in nature. It is found in earth crust in the form of their minerals i.e. Blende, calamine, . It show brittle , hard , shiny nature .It is essential for human being as an enzyme . 2.5 gram zinc is required for our body.
Discovery :
In 1746 zinc is identified but from 20 B.c. zinc is known element in Greek and Roman countries
Origin of name :. The name zinc is derived fro. Persian word ‘sing’ Meaning of this word is ‘ stone ‘
Physical properties :
1) Atomic symbol: zinc is denoted by symbol Zn
2) Atomic number: atomic number of zinc is 30 In zinc 30 proton and 30 electron is present
3) Atomic weight/ mass: zinc show atomic mass is 65.39 Amu In zinc 30 proton and 35 electron is present
4) Position : it is place in periodic table at 4 th row( period) and 12 th column ( group) It is 12th group elements
5) Block : zinc is place in the d block Outer shell electron occupy d orbit
6) Colour : zinc show silvery grey colour after purification process
7) Odour : it is odourless metal
8) Nature: zinc is found in solid state
9) Boiling point : boiling point of zinc is 9070C
10) Melting point : melting point of zinc is 4170C
11) Isotopes: Zinc show 5 stable isotope
64Zn : atomic weight of this isotope is 64 Amu In this isotope 30 proton, 30 electron and 34 neutron is present. It is present 49.1% in nature. It show ß decay.
66Zn: atomic weight of this isotope is 65.9 Amu In this isotope 30 proton, 30 electron and 36 neutron is present. It is present 27.7% in nature
67Zn: atomic weight of this isotope is 66.9 Amu In this isotope 30 proton, 30 electron and 37 neutron us present It is present 4%in nature
68Zn: atomic weight of this isotope is 67.9 Amu In this isotope 30 proton, 30 electron and 38 neutron is present. It is present 18.7 % in nature
70Zn: atomic weight of this isotope is 69.9 Amu
In this isotope 30 proton, 30 electron and 40 neutron is present It is present 0.6 % in nature. It show ß decay
Chemical properties :
1) Electronic configuration
Electronic configuration of zinc is 1S2 2S2 2P6 3S2 3P6 3d10 4S2
Electronic configuration in concert of shell is 2,8,18,2
2) Electronic structure
In zinc 2 electron present in K shell, 8 electrons present in L shell,18 electron present in M shell , 2 electron present in N shell
3) Valency : zinc show valency 2
In zinc 2 electron present in valence shell
4) Atomic radius : atomic radius of zinc is 142 pm
5) Reactivity : it is reactive element
Uses:
1) It is use as a fluorescent light and x ray
2) Zinc oxide use to make paints, rubber
3) It’s oxides also use to make cosmetics, and in pharmaceutical .
4) It is use in batteries
5) It is also use to make textile
6) Zinc is use to make car bodies parts
7) It is use to make safety barrier .
8) Zinc alloy with other metal like silver, nickel, bronze, is use to make typewriter ,solders, and in car industries.
9) Zinc is mainly use to make plastics
10) Trace amount of zinc is useful for animal and plant . 11) Zinc is use in sun block , ointment and calamine lotion . 12) It is useful to make concert, rubber and also use to make paints
Question and Answer:
Q1. Define Zinc
Q2. Who discovered Zinc?
Q2. Physical properties of Zinc
Q4. Write Atomic Symbol of Zinc.
Q5. Write the Atomic number of Zinc.
Q6. On which block Zinc element is present?
Q7. What is the color of Zinc?
Q8. What is the Boiling point of Zinc?
Q9. What is the Melting point of Zinc?
Q10. Write the Isotopes of Zinc.
Q11. Show Electronic configuration of Zinc.
Q12. Write Electronic Structure of Zinc.
Q13. What is the Valency of Zinc?
Q14. Write the uses of Zinc element.