Elements - CORRECT ANSWER It shows information about
Group - CORRECT ANSWER A vertical column is a
Atomic number - CORRECT ANSWER Elements are placed on the table by increasing
Period - CORRECT ANSWER A horizontal row is a
Atomic number - CORRECT ANSWER Each element is represented by a
Element - CORRECT ANSWER Each ________has a unique set of properties.
Elements and compounds - CORRECT ANSWER Into what two groups can substances be classified?
False - CORRECT ANSWER Is the following true or false? Elements can be easily separated into simpler substances.
Chemical - CORRECT ANSWER Compounds are substances that can be separated into simpler substances
only by _______means
True - CORRECT ANSWER Is the following true or false? The properties of compounds are different from those of their component elements.
Compound, gray metal, green poisonous gas. - CORRECT ANSWER Complete the sentence, sodium cloride (table salt) is a______of sodium, which is a soft________, and chlorine, which is a pale yellow_________. See its boiling point. - CORRECT ANSWER Describe one way to decide whether a sample of matter is a substance or a mixture.
Matter, substance, compound, element, heterogeneous mixture, homogeneous mixture. - CORRECT ANSWER Complete the diagram
A.______.
B._______definite composition (homogeneous).
Mixture of substances, variable composition.
C.________(examples: water, sodium chloride).
D._________(examples: Carbon, hydrogen, oxygen).
E._________ nonuniform; distinct phases.
F.________ uniform; also called a solution.
Chemical symbols. - CORRECT ANSWER What is used to represent an element?
Short representation for a chemical element - CORRECT ANSWER What are chemical symbols used for?
Compound - CORRECT ANSWER Subscripts in chemical formulas are used to indicate the relative proportions of the elements in a _______.
True - CORRECT ANSWER Is the following true or false? The elements that make up a compound are always present in the same proportions.
Lead - CORRECT ANSWER Pb is the symbol for what element?
Au - CORRECT ANSWER What is the symbol for gold?
Atimony - CORRECT ANSWER Stibium is the Latin name for which element?