Structure of an atom ch#4 pg# 48 secondary Science class 7 explanation with Test yourself
Garrison Student Hub・2 minutes read
Atoms are tiny particles made up of a dense nucleus containing protons and neutrons, surrounded by electrons. Rutherford's experiment involving gold foil led to the discovery of the nucleus and disproved Thomson's Plum Pudding Model.
Insights
- Atoms are composed of a nucleus containing protons and neutrons, surrounded by electrons, maintaining electrical neutrality.
- Rutherford's experiment debunked Thomson's Plum Pudding Model by revealing the existence of a dense nucleus within atoms through the gold foil experiment, altering the understanding of atomic structure.
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Recent questions
What is the structure of an atom?
An atom consists of a dense nucleus containing protons and neutrons, surrounded by electrons.
How did Rutherford disprove Thomson's model?
Rutherford discovered a dense nucleus in the atom.
What did Rutherford's experiment reveal about atoms?
Atoms have a central positively charged nucleus.
How small are atoms in size?
Atoms are incredibly small, measuring about 1 cm across.
What is the relationship between protons and electrons in an atom?
The number of electrons in an atom is always equal to the number of protons.
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