Ch 8 Elements and Periodic Table Pre-Test

Mendeleev created the first periodic table by arranging elements in order of

• decreasing atomic mass.

• increasing atomic mass.

• increasing atomic number.

• increasing melting points and densities.

The atomic number of an element is based on the

• mass of its nucleus.

• number of electrons around its core.

• number of protons in its nucleus.

• number of neutrons in its nucleus.

From an element’s location in the periodic table, you can predict

• its properties.

• its chemical name.

• its chemical symbol.

• when it was discovered.

In general, which of the following statements about metals is true?

• Metals need to be stored in sealed containers for safety.

• Metals are malleable, ductile, and can carry an electric current.

• Metals are highly reactive substances.

• Metals do not react with oxygen.

The two most common alkaline earth metals are

• copper and zinc.

• iron and silver.

• sodium and potassium.

• calcium and magnesium.

At room temperature, more than half of the nonmetal elements are

• alloys.

• gases.

• liquids.

• solids.

The elements that do not ordinarily form compounds are

• elements in the carbon family.

• metals.

• halogens.

• noble gases.

Each element is given a specific __________ that usually consists of one or two letters.

• atomic number

• symbol

• mass

• charge

A column of elements in the periodic table is called a group, or __________.

• period

• row

• family

• section

Elements that easily transmit electricity and heat display the property known as __________.

• conductivity

• malleability

• ductility

• reactivity