CLEP Chemistry Practice Test 1 exam 2024 with 100% correct answers

Electronegativity trend (p. 21) - correct answer Moving from left to right across a period, electronegativity INCREASES. Moving down a group from top to bottom, electronegativity DECREASES. Principal Quantum Number: "n" (p. 19) - correct answer Represents the shell an electron occupies, denotes the energy level or size of an orbital. Is the coefficient number in an electron configuration e.g. for 3p^2, n=3 Angular Momentum Quantum Number: "l" (p. 19) - correct answer Represents the subshell the electron occupies, shape of the orbital. s-orbital: l=0. p-orbital: l=1. d-orbital: l=2. f-orbital: l=3 Magnetic Quantum Number: "m<sub>l" (p. 19) - correct answer Represents the orbital position and orientation. s-orbital: ml=0. p-orbital: ml=-1 (aligned along the x-axis), 0 (z-axis), or +1 (y-axis). d-orbital: ml=-2,-1,0,+1,+2. f-orbital: ml=-3,-2,-1,0,+1,+2, +3 Spin Quantum Number: "m<sub>s" or "s" (p. 19) - correct answer Represents the spin direction of each electron in each orbital. Positive spin is (+1/2) and negative spin is (-1/2) Sigma Bond (p. 22) - correct answer The first covalent bond between two non-metals Pi Bond (p. 22) - correct answer Any additional covalent bonds between non-metals Le Chatelier's principle (p. 83) - correct answer When a system at equilibrium is disturbed by a change in pressure, temperature, or concentration, the reaction will shift to minimize the change and establish a new equilibrium A