Chemistry 1 Chapter 5 Test Review

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Atomic Orbital

region of high probability of finding an electron

Aufbau Priniciple

tendency of electrons to enter orbitals of lowest energy first

Electron Configuration

arrangement of electrons around atomic nucleus

Ground State

lowest energy level

Pauli Exclusion Prinicple

each orbital has at most two electrons

Heisenberg Uncertainty Principle

states the impossibility of knowing both velocity and position of a moving particle at the same time

In Bohrs model of the atom, where are the electrons and protons located?

The electrons move around the protons, which are at the center of the atom.

How does the energy of an electron change when the electron moves closer to the nucleus?

It increases.

The principal quantum number indicates what property of an electron?

Energy level

What is the shape of the 3p atomic orbital?


How many energy sublevels are in the second principal energy level?


What is the maximum number of f orbitals in any single energy level in an atom?


What is the maximum d orbitals in a principal energy level?


What is the maximum number of orbitals in the p sublevel?


What is the maximum number of electrons in the second principal energy level?


When an electron moves from a lower to a higher energy level, the electron…

absorbs a quantum of energy

If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital?


What types of atomic orbitals are in the third principal energy level?

S, P, and D

What is the next atomic orbital in the series 1s, 2s, 2p, 3s, 3p?


According to the aufbau principle…

electrons enter orbitals of lowest energy first.

What is the number of electrons in the outermost energy level of an oxygen atom?


What is the electron configuration of potassium?


If three electrons are available to fill three empty 2p atomic orbitals, how will the electrons be distributed in the three orbitals?

on electron in each orbital

How many unpaired electrons are in a sulfur atom, what has the atomic number of 16?


How many half-filled orbitals are in a bromine atom?


Stable electron configurations are likely to contain…

filled energy sublevels

What is the basis for exceptions to the aufbau diagram?

Filled and half-filled energy sublevels are more stable than partially-filled energy sublevels.

Which scientist developed the quantum mechanical model of the atom?

Erwin Schrodinger

The quantum mechanical model of the atom..

involves the probability of finding an electron in a certain position.

According to the Heisenberg uncertainty principle, if the position of a tiny moving particle is known, the..

velocity of the particle cannot be exactly determined.

In an s orbital, the probability of findin an electron a particular distance from the nucleus can best be determined by the..

quantum mechanical model.

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