Exam 11: The Chemical Elements

The shell electron configuration for an argon atom is ______________.

Living next to a lake near volcanic activity can be deadly. There can be large amounts of CO₂ dissolved in the water. An earthquake, landslide, or even rapid cooling can trigger the release of the CO₂, causing death nearby. The water of the lake in these cases is

An atom of chlorine has how many valence electrons?

"Buckyball" is an allotrope of the element

For an atom of ₁₂Mg, the number of shells containing electrons is ______________.

The periodic law states that the properties of elements are periodic functions of their atomic

A substance composed of two or more elements chemically combined in a definite, fixed proportion by mass is

The hydroxide ion has a charge of

An atom or chemical combination of atoms with a net electric charge is called a(n) ______________.

How many shells in an atom of silicon contain electrons?

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

The major credit for the development of the periodic table goes to

The ______________ of a given solute is the amount of solute that will dissolve in a specified mass of solvent at a given temperature to produce a saturated solution.

Arrange the atoms magnesium, fluorine, strontium, and sulfur in order of increasing ionization energy.

The common name for CH₄ is ______________.

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

Generally, the solubility of gases in liquids increases with

The element ______________ is a soft, active metal and forms a compound called lye.

Nearly 100% by mass of Earth's core is composed of the two elements