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Questions and Answers
What is the component of an atom present in the centre?
What is the component of an atom present in the centre?
- Positrons
- Electrons
- Neutrons
- Protons (correct)
What is responsible for the positive charge of the nucleus?
What is responsible for the positive charge of the nucleus?
- Positrons
- Electrons
- Protons (correct)
- Neutrons
What balances the force of attraction of electrons towards the nucleus?
What balances the force of attraction of electrons towards the nucleus?
- Centrifugal force (correct)
- Gravitational force
- Protons
- Neutrons
In which portion of an atom are the electrons not drawn close to the nucleus?
In which portion of an atom are the electrons not drawn close to the nucleus?
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What are the circular paths defined by electrons in an atom known as?
What are the circular paths defined by electrons in an atom known as?
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Study Notes
Atomic Structure
- The nucleus is at the centre of an atom.
- Protons are the positively charged particles located in the nucleus
- The force of repulsion between the protons within the nucleus is balanced by the strong nuclear force.
- The electrons revolve around the nucleus in defined paths called orbits or electron shells.
- Electrons are not drawn close to the nucleus in these orbits due to the constant motion of the electrons.
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