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Questions and Answers
Which of the following statements is true about the nucleus of an atom?
Which of the following statements is true about the nucleus of an atom?
- The charge of the nucleus depends on the atom
- The nucleus is neutral (correct)
- The nucleus is positively charged
- The nucleus is negatively charged
Which subatomic particles are found in the nucleus of an atom?
Which subatomic particles are found in the nucleus of an atom?
- Electrons
- Neutrons
- Positrons
- Protons (correct)
What is the role of neutrons in the nucleus of an atom?
What is the role of neutrons in the nucleus of an atom?
- Neutrons determine the chemical properties of an atom
- Neutrons stabilize the nucleus (correct)
- Neutrons provide a negative charge
- Neutrons provide a positive charge
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Study Notes
Atomic Nucleus
- The nucleus of an atom is composed of two main subatomic particles: protons and neutrons.
- Protons are positively charged and have a mass of approximately 1 atomic mass unit (amu).
- Neutrons have no charge and a mass of approximately 1 amu.
Role of Neutrons
- Neutrons play a crucial role in the nucleus of an atom, helping to stabilize the atom by counteracting the positive charge of protons.
- The number of neutrons in an atom can vary, leading to different isotopes of the same element.
- Neutrons also participate in nuclear reactions, such as nuclear fission and fusion.
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