Exam 11: The Chemical Elements

A sample of matter that contains atoms that all have the same number of protons is

Mouthwash is a good example of

Name the following compounds. a. NO₂ b. N₂O₃ c. Zn(NO₃)₂ d. ICl₅

The second period of the periodic table is composed of ______________ (how many?)elements.

The shell electron configuration for an argon atom is ______________.

Elements that display some properties of both metals and nonmetals are called ______________.

An example of a diatomic molecule of a compound is

A watermelon is a good example of

An element that tends to lose its valence electrons during chemical reactions is classified as a(n)______________.

When salt is dissolved in water,the salt is called the ______________.

An equilibrium between solute dissolving and solute crystallizing is characteristic of which of the following solution types?

How many valence electrons does an atom of phosphorus have?

______________ chemistry is the most fundamental of the five major divisions of chemistry.

Which is the formula for baking soda?

What is the preferred name for Mg₃N₂?

Humphry Davy was able to discover six elements by using a new invention called the ______________.

Which science deals with the composition,structure,properties,and reactions of matter?

Which of the following is the shell electron configuration for carbon?

Which of the following is a positively charged polyatomic ion?

The periodic table is most easily understood in terms of the ______________ configurations of the elements.