Multiple Choice
An atom with its first two electron shells completely filled would contain how many electrons?
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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 part of an atom is mostly empty space?
A
Nucleus
B
Proton cloud
C
Neutron
D
Electron cloud
Verified step by step guidance1
Recall the basic structure of an atom, which consists of a nucleus (containing protons and neutrons) and an electron cloud surrounding the nucleus.
Understand that the nucleus is very dense and contains almost all the mass of the atom, but occupies a very small volume compared to the entire atom.
Recognize that protons and neutrons are particles located inside the nucleus, so they do not represent empty space.
The electron cloud is the region around the nucleus where electrons are likely to be found, and it occupies most of the volume of the atom.
Since electrons are very small and spread out over a large volume, the electron cloud is mostly empty space, making it the part of the atom that is mostly empty.
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