The correct order of electronegativity is
The correct order of electronegativity is
April 2022
Which of the reactions will need the maximum amount of energy?
Which of the reactions will need the maximum amount of energy?
Which of the reactions will need the maximum amount of energy? Read More »
Find the successive elements of the periodic table with ionisation energies, 2372, 520 and 890 kJ per mol respectively
Find the successive elements of the periodic table with ionisation energies, 2372, 520 and 890 kJ per mol respectively
For the same value of n, the penetration power of orbital follows the order
For the same value of n, the penetration power of orbital follows the order
For the same value of n, the penetration power of orbital follows the order Read More »
Which one will have the highest 2nd ionisation energy?
Which one will have the highest 2nd ionisation energy?
Which one will have the highest 2nd ionisation energy? Read More »
Which of the following elements has 2 shells and both are completely filled?
Which of the following elements has 2 shells and both are completely filled?
Which of the following elements has 2 shells and both are completely filled? Read More »
An element X belongs to the 3rd period and 1st group of the periodic table. What is the number of valence electrons in its atom?
An element X belongs to the 3rd period and 1st group of the periodic table. What is the number of valence electrons in its atom?
Which of the following does not decrease while moving down the group of the periodic table?
Which of the following does not decrease while moving down the group of the periodic table?
The elements A, B and C belong to group 2, 14 and 16 respectively, of the periodic table. Which of the two elements will form covalent bonds?
The elements A, B and C belong to group 2, 14 and 16 respectively, of the periodic table. Which of the two elements will form covalent bonds?