CHEMICAL PRINCIPLES CHAPTER 2 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

CHEMICAL PRINCIPLES CHAPTER 2 UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS

◉ Atoms interact to form ____.
Answer: molecules


◉ ______ is the study of interactions between atoms & molecues.
Answer: chemistry


◉ Hierarchy of cell structure.
Answer: I. ATOM (Elements)
II. MOLECULE
III. MACROMOLECULE (building blocks)
IV. ORGANELLE
V. CELL


◉ Atoms are composed of.
Answer: electrons, protons, neutrons


◉ Electrons:.

, Answer: negative charged (small)


◉ Protons: have mass.
Answer: positive charged (larger)


◉ Neutrons:.
Answer: neutral charge (larger)
*give weight to atom


◉ The number of _____ tells you the atom.
Answer: protons


◉ _____ and _____ make up the nucleus.
Answer: protons and neutrons


◉ _____ move around the nucleus.
Answer: electrons


◉ Atoms with the same number of _____ are classified as the same
chemical element.
Answer: protons