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CP Chemistry Midterm

Midterm Review Chapters 4-6

QuestionAnswer
In the Bohr model of the atom, orbitals have fixed ______________. energies
How does the energy of an electron change when the electron moves closer to the nucleus? the energy decreases
What property does the principle quantum number indicate? the electron's energy level
How many sublevels (shapes) are there in the second principle energy level? 2 (s & p)
How many sublevels (shapes) are there in the third principle level? 3 (s, p, & d)
What happens when an electron moves from a lower energy level to a higher energy level? The electron absorbs a quantum of energy.
What happens when an electron moves from a higher energy level to a lower energy level? The elecrton emits energy.
If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital? counterclockwise
What shapes of orbitals exist at the 3rd principle level? s, p, & d
What is the next atomic orbital in the series 1s, 2s, 2, 3s, 3p, 4s? 3d
What principle states that we have to fill lower energy orbitals before placing electrons in higher orbitals? Aufbau Principle
What is the electron configuration of Ca? 1s2, 2s2, 2p6, 3s2, 3p6, 4s2
Which color of visible light has the longest wavelength? red
What color of visible light has the shortest wavelength? violet
What electron movement causes the emmission of light from an atom? The electron drops from a higher to a lower energy level.
Which variable is directly proportional to frequency? energy (As frequency increases, energy increases.)
What atomic model involves the probability of finding an electron in a certain place? Quantum Mechanical Model
What does the Heisenberg uncertainty principle state? You cannot know both the position and velocity of an electron.
Where are the valence electrons located in the atom? in the highest energy level
To what do the periods on the table correspond? the principle energy level
The modern periodic table is arranged in what order? increasing atomic number
Name the metal: oxygen, hydrogen, calcium calcium
Name the nonmental: magnesium, gold, nitrogen nitrogen
Which subatomic particle plays the greatest role in determining the chemical properties of that element? electron
Are metal or nonmetals poor conductors of electicity? nonmetals
How does atomic radius change from top to bottom in a group on the periodic table? increases
How does atomic radius change from left to right across a period on the periodic table? decreases
When do cations form? when an atom loses electrons
When do anions form? when an atom gains electrons
What is ionization energy? the energy required to remove an electron from an atom in the gaseous state
Where are the most electronegative elements found? upper right corner (excluding the noble gases)
How does electronegativity change from left to right across the periodic table? increases
How does electronegativity change from bottom to top in a group on the periodic table? increases
Created by: ssuriano