15 Questions
What determines the element of an atom?
Number of protons
Where are protons and neutrons located in an atom?
Nucleus
What contributes to the mass of the atom?
Neutrons
Where do electrons occupy a region surrounding the nucleus?
Electron cloud
Which quantum number determines the shape of the subshell?
Magnetic Quantum Number (l)
What does the Pauli Exclusion Principle state?
No two electrons in an atom can have the same set of quantum numbers.
What is the region within an energy level where there is a high probability of finding an electron called?
Orbital
Which type of orbitals come in various shapes (s, p, d, f)?
Orbitals
What does Hund's Rule state regarding the filling of orbitals?
Electrons fill orbitals of the same energy level singly before pairing up.
What is the role of protons in determining the nature of an element?
Determining the element and known as the atomic number
What is the main difference between the Bohr model and the quantum mechanical model of the atom?
The Bohr model describes fixed orbits, while the quantum mechanical model describes orbitals
What is the function of neutrons in an atom?
Contributing to the mass of the atom
How are electrons organized in the quantum mechanical model of the atom?
Using the concept of orbitals rather than fixed orbits
What do electrons occupy around the nucleus in an atom?
A region often referred to as the electron cloud
Why was Niels Bohr's model of electron orbits eventually replaced by the quantum mechanical model?
It did not use the concept of orbitals for electron organization
Test your knowledge about the nucleus of an atom and its constituent particles: protons, neutrons, and electrons. Learn about their charges, locations, and roles in determining the properties of elements.
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