apch02_studyqxns - South Pasadena AP Chemistry Name Study...

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South Pasadena AP Chemistry Name __________________________________ 2 Atoms and Elements Study Questions and Problems “The one quality which sets one man apart from another — the key which lifts one to every aspiration while others are caught up in the mire of mediocrity — is not talent, formal education, nor brightness — it is self- discipline. With self-discipline, all things are possible. Without it, even the simplest goal can seem like the impossible dream.” Theodore Roosevelt (1858-1919) 1. Explain, at an atomic or molecular level, what happens when a. water freezes to form ice b. copper and tin combine to form bronze c. rainwater evaporates from the pavement 3. Which of the following atoms are isotopes of the same element? Identify the elements of these isotopes and describe the number of protons and neutrons in the nucleus of them all. 15 7 X 12 6 X 13 7 X 18 8 X 14 7 X 14 6 X 16 8 X 13 6 X 17 8 X 4. There are three naturally occurring isotopes of neon: neon-20 mass 19.9924 amu
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apch02_studyqxns - South Pasadena AP Chemistry Name Study...

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