8.P.1.2 Review

Where are the most reactive metals located on the periodic table?

• the uppermost complete row of the table

• the rows at the bottom of the table connecting two section

• the column at the far left side of the table

• the second column from the right side of the table

Where are the most reactive nonmetals located on the periodic table?

• the uppermost complete row of the table

• the rows at the bottom of the table connecting two sections

• the column at the far left side of the table

• the second column from the right side of the table

What physical property is characteristic of all of the elements in the group located in the rightmost column of the periodic table?

• very high melting point

• gas state at room temperature

• good conductor of electric current

• extremely brittle solid at room temperature

Which of these is one similarity of the elements in the first group of the periodic table?

• The elements in the group have similar atomic masses.

• The elements in the group have the same number of electrons.

• The elements in the group are very unreactive metals.

• The elements in the group react with oxygen in similar ways.

Which statement BEST describes the organization of the periodic table of the elements?

• All gases are grouped together.

• Gases easily form compounds with other elements.

• Elements within a group have similar properties.

• Elements within a period have the same number of electrons.

Elements in the same column of the periodic table of the elements all

• have the same number of protons.

• share the same atomic structure.

• have similar physical characteristics.

• share the same number of neutrons.

Which characteristic of an element determines its placement in the periodic table?

• mass

• size

• number of neutrons

• number of protons

Which statement best explains how the periodic table is organized?

• increasing atomic number from left to right

• increasing number of neutrons from left to right

• decreasing number of electrons from left to right

• decreasing atomic mass number from left to right

Which pair of elements has the most similar properties?

• Li and B

• I and Ca

• K and He

• N and P

The physical properties of element X are shown below.

malleable

ductile

shiny

conducts heat and electricity

Which most likely represents the identity of element X?

• carbon (C)

• copper (Cu)

• Iodine (I)

• Sulfur (S)