Exam 11: Place and Time

Give the common ionic charge for each of the following elements, and classify each as a metal or a nonmetal.

Diamond and graphite are

Which of the following is not matter?

Which of the following is the symbol for an alkali metal?

About 74% by mass of Earth's crust is composed of the two elements

In general, elements that have four to eight electrons in their valence shell are

The molecular formula of "buckyball" is ______________.

In a supersaturated solution,

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

The three allotropes of carbon are graphite, the fullerenes, and ______________.

The pale-green, gaseous element named ______________ was used as a poisonous gas in World War I.

Pencil "lead" (graphite) is made primarily of

A solid solution of two or more metals is called a(n) ______________.

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

An example of a diatomic molecule of an element is

An element that tends to gain or share electrons during chemical reactions is classified as a(n) ______________.

How many shells in an atom of silicon contain electrons?

A gold-plated (gold-covered) piece of jewelery, such as a bracelet, is

An atom that has equal amounts of protons and electrons is a ______________ ion.

What is the preferred name for Mg₃N₂?