(i) Describe Thomson's model of the atom. Which subatomic particle was not present in Thomson's model of the atom?
​(ii) The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
Answers
Answered by
1
Explanation:
In Thomson's model, the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges, like negatively charged “plums” surrounded by positively charged “pudding”. The 1904 Thomson model was disproved by Hans Geiger's and Ernest Marsden's 1909 gold foil experiment.
Neutron the subatomic particle was not present in the thomson's model of atom and also positively charged nucleus was not present
Answered by
4
Answer:
Explanation:
In Thomson's model, the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges, like negatively charged “plums” surrounded by positively charged “pudding”. The 1904 Thomson model was disproved by Hans Geiger's and Ernest Marsden's 1909 gold foil experiment.
Neutron the subatomic particle was not present in the thomson's model of atom and also positively charged nucleus was not present
Similar questions