Chemistry Unit Review - Part 2: 8.P.1.2

Which choice BEST describes the properties of potassium (K), based on its position on the periodic table of elements?

• a nonreactive metal

• a highly reactive metal

• a nonreactive nonmetal

• a highly reactive nonmetal

The physical properties of element X are shown in the table.

Which MOST LIKELY represents the identity of element X?

• carbon (C)

• Copper (Cu)

• Iodine (I)

• Sulfur (S)

Which element will MOST LIKELY gain electrons?

• Cl

• Na

• Ne

Where on the periodic table are you MOST LIKELY to find elements that do not react with other elements?

• group 1

• group 17

• group 18

What is the significance of metalloids in the periodic table?

• They separate liquids from solids

• They separate metals from nonmetals

• They combine elements and compounds.

If an element has no electrons to share and is stable, what family is it found in?

• alkali metals

• noble gases

• halogens

What do the atomic numbers represent?

• number of atoms

• number of protons

• number of neutrons

Which is the MOST reactive group of nonmetals?

• Group 1

• Group 5

• Group 17

Where would the MOST reactive metallic elements of the periodic table MOST LIKELY be found?

• in the B families

• on the top of the table

• on the far left side of the table

How are elements similar to those in the same group on the periodic table?

• They have the same number of valence electrons.

• They have the same number of electrons.

• They have the same number of protons.

• They have the same atomic mass.