CHEM 112 Jay Shore Exam 1Questions With Detailed Answers 100% Pass

Light is composed of particles. - correct answers false Light is composed of waves - correct answers false Light sometimes behaves as if composed of waves - correct answers true Light sometimes behaves as if composed of particles - correct answers true Light is a form of electromagnetic radiation - correct answers true Photons are packets of energy - correct answers true photons have no mass - correct answers true photons have no electrical charge - correct answers true photons have no momentum - correct answers false photons have no angular momentum - correct answers false Electrons sometimes exhibit wave-like properties - correct answers true C60 molecules sometimes exhibit wave-like properties - correct answers true A bullet will never exhibit wave-like behavior - correct answers true The larger the mass, the larger the de Broglie wavelength - correct answers false The faster the object moves, the larger the de Broglie wavelength - correct answers false for electromagnetic radiation, longer the wavelength, the higher the frequency - correct answers false for electromagnetic radiation, the longer the wavelength, the higher the energy - correct answers false The faster an electron moves, the shorter its wavelength - correct answers true electrons have magnetic moments - correct answers true Electrons have no mass - correct answers false electrons have a positive electric charge - correct answers false electrons circle nuclei like planets - correct answers false electrons behave like really small apples - correct answers false photons have the same physical behavior as apples - correct answers false At most two electrons can occupy an orbital - correct answers true electron orbitals are solutions to a mathematical equation - correct answers true every atom has a infinite number of orbitals - correct answers true Every orbital in an atom has a unique set of three quantum numbers - correct answers true every electron in an atom has a unique set of three quantum numbers - correct answers false electrons fill the orbitals with the lowest energy first - correct answers true the higher the potential energy of the orbital, the more stable. - correct answers false the stronger the electrostatic interaction between electron and nucleus, the higher the orbitals potential energy - correct answers false the larger the principle quantum number n, the closer the orbital is to the nucleus - correct answers false The larger the principle quantum number n, the higher the potential energy of the orbital - correct answers true The larger the principle quantum number n, the stronger the electrostatic attraction between the electron and the nucleus - correct answers false there is a single s orbital in every shell - correct answers true there are three p orbitals in every shell - correct answers false An ns orbital has n-1 nodes - correct answers true the electrostatic interaction directly affects the potential energy of electron orbitals - correct answers true the stronger the electrostatic attraction, the more stable - correct answers true the stronger the electrostatic repulsion, the more stable - correct answers false the periodic table was developed before the structure of the atom was known - correct answers true the magnetic moment of an electron is due to its spinning - correct answers false Alkali metal atoms have two valence electrons - correct answers false metal elements tend to react by gaining electrons - correct answers false Non metal elements tend to react by gaining electrons - correct answers true metal elements tend to have large ionization energies than nonmetal elements - correct answers false the most reactive alkali metal is lithium - correct answers false the most reactive halogen is flourine - correct answers true hydrogen is an alkali metal - correct answers false Hydrogen is an halogen - correct answers false oxygen atoms tend to react by losing two electrons - correct answers false ionization energy is the energy required to remove an electron from an atom or ion in the gas phase - correct answers true Sodium is an alkali metal element - correct answers true ionization energy is the energy released when an atom gains an electron in the gas phase - correct answers false Electron affinity is the energy required to remove an electron from an atom or ion in the gas phase - correct answers false Electron affinity is the energy released when an atom gains an electron in the gas phase - correct answers true electronegativity is a measure of the ability of an atom to draw electrons to itself in a molecule - correct answers true electronegativity is the energy required to remove an electron from an atom or ion in the gas phase - correct answers false As you go up and to the right on the periodic table, atoms get smaller - correct answers true As you go up and to the right of the periodic table, ionization energies get smaller - correct answers false As you go up and to the right on the periodic table, electron affinities get more negative - correct answers false of the alkaline earth metal elements, radium (Ra) should have the largest ionization energy - correct answers false Ionization energy is always positive - correct answers true After removing the first electron from an atom, it is always easier to remove a second electron than it was the first - correct answers false the first ionization energy is always greater than the second ionization energy - correct answers false electron affinities are always positive - correct answers false Alkali metals tend to form +1 ions - correct answers true Alkaline earth metals tend to form +1 ions - correct answers false Halogens tend to form +1 ions - correct answers false Noble gases tend to form ions with a +1 charge - correct answers false Chalcogens tend to form ions with a charge of -1 - correct answers false the photoelectric effect describes the emission of electrons from a metals surface when light at a high enough frequency shines on it - correct answers true the heisenberg uncertainty principle states that it is impossible to detect the position of an electron or velocity of an electron - correct answers false Louis de Broglie postulated that matter has particle-like properties - correct answers false the number of electrons in an orbital depends on the orbitals shape - correct answers false An orbital forms the boundaries where electrons must be contained - correct answers false The unit for measuring waves is Hertz - correct answers false An element can be identified by the characteristic atomic emission spectrum it can produce - correct answers true An s orbital is in the shape of a dumbbell - correct answers false Six electrons can exist in a single p orbital - correct answers false