Multiple Choice
Potassium has an atomic number of 19. What is its electron configuration?
10. Periodic Properties of the Elements
The Electron Configuration
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Where are the electron particles located in an atom?
A
In the neutron field
B
In the electron cloud surrounding the nucleus
C
In the proton shell
D
In the nucleus
Verified step by step guidance1
Understand the structure of an atom: An atom consists of a nucleus, which contains protons and neutrons, and an electron cloud surrounding the nucleus.
Recognize that electrons are negatively charged particles that move around the nucleus in regions called orbitals, which collectively form the electron cloud.
Differentiate between the components of an atom: Protons and neutrons are located in the nucleus, while electrons are located in the electron cloud.
Clarify that the term 'electron cloud' refers to the area around the nucleus where electrons are likely to be found, as they do not have fixed positions.
Conclude that electrons are not located in the neutron field or proton shell, but in the electron cloud surrounding the nucleus.
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The Electron Configuration practice set
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