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CHEM1405 Test 3
| Question | Answer |
|---|---|
| ELECTRONEGATIVITY ___ AS YOU GO UP AND DIAGONALLY ON THE PERIODIC TABLE | INCREASES |
| IONS _______ IN SIZE GOING DOWN COLUMN ON PERIODIC TABLE | INCREASE |
| IE _________ GOING UP PERIODIC TABLE AND TO RIGHT | INCREASES |
| ATOMIC RADIUS _____ GOING DOWN PERIODIC TABLE AND TO LEFT | INCREASE |
| MORE IE = ____ REACTIVE | LESS |
| PAULI EXCLUSION PRINCIPLE | ONLY TWO ELECTRONS PER BOX |
| AUFBRAU PRINCIPLE | ELECTRONS OCCUPY LOWEST ENERGY ORBITALS FIRST |
| SINGLE ELECTRONS OCCUPY DIFFERENT ORBITALS OF THE SAME ENERGY | HUNDS RULE |
| S ORBITAL SHAPE | SPHERICAL |
| P ORBITAL SHAPE | 2 LOBES |
| D ORBITAL SHAPE | 4 LOBES |
| F ORBITAL SHAPE | 6 LOBES |
| RED HAS _______ WAVELENGTH | LONGEST |
| VIOLET HAS _________ FRQUENCY | HIGHEST |
| VIOLET HAS _______ PHOTON ENERGY | HIGHEST |
| SPPED OF LIGHT (C) | 3.0x10^8 m/s; C= νλ |
| PLANCK'S CONSTANT (h) | 6.626x10^-34 Jxs |
| WAVELENGTH (m) | LAMBDA- λ |
| FREQUENCY (1/s) | NU- ν |
| ELECTROMAGNETIC SPECTRUM FROM SHORTEST TO LONGEST WAVELENGTH/HIGHEST TO LOWEST FREQUENCY | GAMMA RAY, XRAY, ULTRAVIOLET, VISIBLE (ROYGBIV), INFRARED, MICROWAVE, RADIO |
| PHOTON ENERGY | Ephoton=hC/λ |
| ENERGY OF PHOTON IS ________ PROPORTIONAL TO FREQUENCY AND _________ PROPORTIONAL TO WAVELENGTH | DIRECTLY; INVERSELY |
| CHANGE IN ENERGY | ΔE= Efinal-Einitial |
| n=6-n=2 ----> | GREATEST RELEASE OF ENERGY, HIGHEST FREQ |
| n=3-n=2 ----> | LONGEST WAVELENGTH |
| DEFICIENCY OF BOHR MODEL | ONLY EXPLAINS HYDROGEN |
| MODERN MODEL OF THE ATOM | USES ORBITALS AND PRINCIPAL ENERGY LEVELS; SHOWS PROBABILITY OF WHERE ELECTRONS MOST LIKELY TO BE FOUND (CLOSER DOTS, MORE PROB) |
| BONDS ARE POLAR AND MOLECULE SHAPE NOT SYMMETRICAL, THEN ITS A _____ MOLECULE | POLAR |
| BONDS ARE NONPOLAR OR SHAPE IS SYMMETRICAL, THEN ITS A _______ MOLECULE | NONPOLAR |
| HYDROGEN | TWO ELECTRONS (ONE PAIR) |
| BORON | SIX ELECTRONS (3 PAIRS) |