CHEMICAL PRINCIPLES THE QUEST FOR INSIGHT ACTUAL TEST QUESTIONS AND SOLUTIONS COMPREHENSIVE REVIEW PACKAGE

CHEMICAL PRINCIPLES THE QUEST FOR
INSIGHT ACTUAL TEST QUESTIONS AND
SOLUTIONS COMPREHENSIVE REVIEW
PACKAGE

●● What substance is made up of a single type of atom?
Answer: Element


●● Which subatomic particle has a positive charge?
Answer: Proton


●● Which principle says it is impossible to know both the velocity and
position of an electron at the same time?
Answer: Heisenberg uncertainty


●● Which principle says two electrons cannot have the same four
quantum numbers?
Answer: Pauli exclusion


●● Which theory says tiny particles absorb or release energy in packets?
Answer: Quantum theory

, ●● Which metal is liquid at room temperature?
Answer: Mercury


●● What are atoms of the same element with different mass numbers
called?
Answer: Isotopes


●● What is an atom called when it gains an electron and becomes
negative?
Answer: Anion


●● What rule says atoms tend to bond so they have eight electrons in the
outer shell?
Answer: Octet rule


●● What decay occurs when a nucleus breaks apart or changes and emits
radiation?
Answer: Gamma decay


●● What are electrons found in the outermost shell called?
Answer: Valence electrons


●● What is the time for half of a radioactive sample to change called?