Exam 11: The Chemical Elements

The major division of chemistry that deals with what substances are present and in what quantities is called ______________chemistry.

Give the chemical symbol for each element.

Which of the five major divisions of chemistry deals exclusively with carbon compounds?

Calcium carbonate is the major component of each of the following except

In a neutral atom, the number of protons is equal to the number of ______________.

A chocolate chip cookie is a good example of

Hydrogen is generally classified as a

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

The lesser amount of a substance in a solution is generally called the

If all samples of a material have identical properties and composition, it is

The symbol for oxygen is

How many valence electrons does an atom of phosphorus have?

What is the preferred name for Mg₃N₂?

Two or more forms of the same element that have different bonding structures in the same physical phase are called

Over 99.9% of dry air at sea level is composed of the gases N₂, O₂, and ______________.

A compound of which element is used as a diet supplement to prevent thyroid problems?

About 75% of the mass of the visible universe is composed of which element?

The greater amount of substance in a solution is generally called the

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

Give the name for each element.