Stability In Bonding Answer Key

Question: The properties of a compound are _____ the properties of the elements that make up the compound

Answer: different from

Question: Na and Cl are chemical

Answer: symbols

Question: NaCl and NaOH are chemical

Answer: formulas

Question: in the formula H20 the number 2 is a

Answer: subscript

Question: The number 2 in the formula H20 tells you that each unit of this compound contains 2

Answer: hydrogen

Question: if a symbol in a chemical formula does not have a subscript after it, a unit of that compound contains

Answer: one atom

Question: the total number of atoms in Fe2O3 is

Answer: five

Question: there are ___ different elements in H2SO4

Answer: three

Question: an atom is chemically stable if its outer energy level __________ electrons

Answer: is filled with

Question: for atoms of the most noble gases and the most other elements , the outer energy level is full when it has______ electrons

Answer: eight

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