Concept explainers
Interpretation:
The use of plum pudding model to differentiate between hydrogen and helium must be explained.
Concept introduction:
Plum pudding model is an atomic model proposed by Thomson. According to this model, negatively charged electrons are embedded into positive charge sphere made by mixing all nucleuses homogeneously.
Answer to Problem 5E
Hydrogen has only one proton and one electro without any neutron. In helium there are two protons, two electrons and two neutrons.
Explanation of Solution
According to the above diagram, in helium atom two electrons are immersed in the sea of nucleus (positive charge sphere) unlike hydrogen atom where there is only one electron immersed in the sea of nucleus.
Plum pudding model is used to differentiate between hydrogen atom and helium atom.
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