EXERCISES
Lakhmir Singh Chemistry Solutions for EXERCISES
Simple step-by-step solutions to EXERCISES questions of Atomic Structure from Lakhmir Singh's Science - Chemistry. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from EXERCISES with Hints & Solutions
The atomic number of element is . The number of valence electrons in it are:
The atomic number of an element is . Its electronic configuration is:
All the gases form cathode rays and anode rays when electricity is passed through them:
What does the formation of anode rays tell us about the atoms?
Write any two properties of cathode rays.
How many electrons are there in the outermost shell of a chlorine atom?
The nucleus of an atom has protons and neutrons. What would be the number of valence electrons, per atom of this element?
Write the Dalton's atomic theory.
Describe Bohr's model of the atom. How did Neils Bohr explain the stability of atom?
