earth Science Chapter 5: Atoms to Minerals

Lead has an electron configuration of 2, 8, 18, 32, 18, 4. How many protons does lead have?

82 protons.

Which of the following statements is false?

As magma cools, its atoms, molecules, and ions tend to move away from each other

Which is the most probable reason for the difference between the properties of diamond and graphite?

Diamond and graphite are different structural forms of carbon

Which of the following does not describe a characteristic of a mineral?

It is a mixture

Ultraviolet light could be used to identify what minerals?

Wilemite

The smallest part of an element that has all the properties of that element is called a(n)

atom

Gold is an element because it

cannot be broken down into simpler substances

Two examples of radioactive minerals are

carnotite and uraninite

The mineral calcite is a combination of calcium, carbon, and oxygen. Calcite is an example of a(n)

compound

Most minerals, as well as most substances, are

compounds

An example of a native mineral is

copper

What type of chemical bond is formed when atoms share electrons?

covalent bonds

The nucleus of an atom does not contain

electrons

Which of the following mineral properties includes the descriptions conchoidal, splintery, and irregular ?

fracture

Atoms that have gained or lost an electron are called

ions

Metals form positive ions because they easily

lose their electrons

Gold and diamond are not generally classified as rock-forming minerals because

neither is common

Silicates always contain

oxygen

Which of the following is not a physical characteristic determined by the arrangement of the atoms within a mineral?

streak