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CP Chemistry Midterm
Midterm Review Chapters 4-6
| Question | Answer |
|---|---|
| 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
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