Bohr-Sommerfeld model
This article provides answers to the following questions, among others:
What main innovation did Sommerfeld introduce?How many sub shells does a main shell have?How many electrons have space within a particular subshell?What...
Bohr’s atomic model
This article provides answers to the following questions, among others:
What is meant by a shell?What is a postulate?What distinguishes the ground state of an atom?How can an atom absorb or emit...
Rutherford’s atomic model
This article provides answers to the following questions, among others:
What is the setting of the gold foil experiment?What are α-particles?What conclusion can be drawn from the gold foil test?How big is the...
Periodic table
This article provides answers to the following questions, among others:
How are the elements arranged in the periodic table?What are the periods in the periodic table?Why does the size of atoms increase...
Classification of matter
This article provides answers to the following questions, among others:
How can substances be classified?What is the difference between a pure substance and a mixture?What is meant by an element?What are chemical...
Structure of matter
This article provides answers to the following questions, among others:
How is a substance constructed at the atomic level?What is a molecule?What is meant by a particle?What does an atomic nucleus consist...
