CHEMICAL PRINCIPLES THE QUEST FOR INSIGHT 7TH EDITION EXAMS SET COMPLETE QUESTIONS AND ANSWERS EXPERT VERIFIED

CHEMICAL PRINCIPLES THE QUEST FOR
INSIGHT 7TH EDITION EXAMS SET
COMPLETE QUESTIONS AND ANSWERS
EXPERT VERIFIED


◉ Chemistry
Answer: the study of interactions between atoms and molecules


◉ atom
Answer: the smallest unit of matter and cannot be subdivided into
smaller substances without losing its properties


◉ molecules
Answer: atoms interact to form...


◉ electrons
Answer: negatively charged particles


◉ protons
Answer: prositively charged particles

,◉ neutrons
Answer: uncharged particles


◉ protons and neutrons are
Answer: make up the nucleus


◉ electrons
Answer: move around the nucleus in regions called shells


◉ chemical element
Answer: atoms with the same number of protons are classified as
the same


◉ true
Answer: true/false: each different chemical element has a different
number of protons and electrons


◉ atomic number
Answer: number of protons in the nucleus


◉ atomic mass

, Answer: the total number of protons and neutrons in an atom


◉ isotopes
Answer: atoms with different numbers of neutrons but the same
number of protons


◉ hydrogen, carbon, nitrogen, and oxygen
Answer: most abundant chemical elements in living organisms


◉ electron shells
Answer: how electrons are arranged corresponding to different
energy levels


◉ electron configuration
Answer: refers to the arrangement of electrons in these shells


◉ innermost shell can hold up to 2 electrons
the second shell can hold up to 8 electrons
the third shell can hold up to 8 electrons if its the outermost shell
Answer: characteristics of each electron shell


◉ valence shell (number of electrons in outermost shell