Multiple Choice
In a model of an atomic nucleus, what do the orange and yellow spheres typically represent?
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2. Atoms & Elements
The Atom
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following statements best describes the structure of matter at the atomic level?
A
Atoms are indivisible particles that cannot be broken down into smaller components.
B
Atoms consist of a dense nucleus containing protons and neutrons, surrounded by electrons in defined energy levels.
C
Atoms are made up of protons and electrons only, with neutrons found outside the nucleus.
D
Atoms are composed only of electrons and neutrons, with no protons present.
Verified step by step guidance1
Step 1: Understand the basic structure of an atom, which consists of three main subatomic particles: protons, neutrons, and electrons.
Step 2: Recognize that protons and neutrons are located in the dense central part of the atom called the nucleus.
Step 3: Know that electrons are much smaller particles that move around the nucleus in regions called energy levels or electron shells.
Step 4: Recall that protons carry a positive charge, electrons carry a negative charge, and neutrons are neutral, which helps define the atom's overall properties.
Step 5: Use this knowledge to evaluate the given statements and identify the one that correctly describes the atomic structure, which includes a nucleus with protons and neutrons and electrons in defined energy levels around it.
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