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Questions and Answers
An atom is composed of a nucleus that contains both negatively charged protons and neutral neutrons.
False
100 million atoms aligned next to each other would measure approximately 1 meter across.
False
In an atom, the number of negatively charged electrons equals the number of positively charged protons.
True
The nucleus of an atom is composed of protons and electrons.
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In the theoretical structure of an atom, the nucleus is indicated by yellow circles representing positive charged nucleous.
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Study Notes
Structure of an Atom
- Atoms are incredibly small; 100 million atoms side by side measure only about 1 cm.
- An atom is composed of a dense nucleus surrounded by a cloud of negatively charged electrons.
- The nucleus contains positively charged protons and electrically neutral neutrons.
- The number of electrons equals the number of protons, resulting in an overall electrically neutral atom.
- Electron cloud is visualized with dark blue circles, representing negatively charged electrons.
- The nucleus is represented with yellow circled charges, indicating positive protons.
- Protons in the nucleus contribute to the positive charge, maintaining electrical balance with surrounding electrons.
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Description
Explore the intricate details of atomic structure in this quiz based on Chapter 4 of Chemistry. Understand the components of an atom, including the nucleus and surrounding electrons. Test your knowledge on the fundamental unit of matter and its properties.
