Multiple Choice
An atom has a mass number of 32 and 17 neutrons. What is the atomic number of this atom?
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 statement about the nucleus of an atom is incorrect?
A
Electrons are found in the nucleus.
B
The nucleus contains protons and neutrons.
C
The nucleus is much smaller than the atom itself.
D
The nucleus is positively charged.
Verified step by step guidance1
Understand the structure of an atom: An atom consists of a nucleus and an electron cloud. The nucleus contains protons and neutrons, while electrons orbit around the nucleus.
Identify the components of the nucleus: The nucleus is composed of protons, which are positively charged, and neutrons, which have no charge. Electrons, which are negatively charged, are not found in the nucleus.
Analyze the size comparison: The nucleus is much smaller than the entire atom. Most of the atom's volume is actually empty space where the electrons are found.
Consider the charge of the nucleus: Since the nucleus contains protons, which are positively charged, the overall charge of the nucleus is positive.
Evaluate the given statements: The statement 'Electrons are found in the nucleus' is incorrect because electrons are located outside the nucleus in the electron cloud.
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