Multiple Choice
Which element has 13 protons in its nucleus?
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4. Atoms and Elements
The Atom (Simplified)
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Which option best describes the basic structure of an atom?
A
Electrons clustered at the center with protons and neutrons orbiting around them
B
A dense nucleus containing protons and neutrons, with electrons located in the space surrounding the nucleus
C
A nucleus containing electrons and neutrons, with protons orbiting around the nucleus
D
A uniform sphere of positive charge with electrons embedded throughout it
Verified step by step guidance1
Recall the fundamental components of an atom: protons, neutrons, and electrons.
Understand that protons and neutrons are located together in a small, dense region called the nucleus at the center of the atom.
Recognize that electrons are much smaller and occupy the space surrounding the nucleus, moving in regions called electron clouds or orbitals.
Eliminate options that incorrectly place electrons in the nucleus or have protons orbiting around the nucleus, as this contradicts established atomic models.
Conclude that the best description is the one stating a dense nucleus containing protons and neutrons, with electrons located in the space surrounding the nucleus.
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