Science Grade 7 - Chapter 11

What determines the order of elements on today’s periodic table?

• decreasing atomic mass

• increasing atomic number

• decreasing atomic number

• increasing atomic mass

Which of the following lists of elements forms a group on the periodic table?

• B, Si, As, Te, and At

• Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zn

• He, Ne, Ar, Kr, Xe, and Rn

• Li, Be, B, C, N, O, F, and Ne

Which is NOT a property of metals?

• luster

• brittleness

• ductility

• conductivity

What are two properties that make metal a good choice to use as wire in electronics?

• conductivity, malleability

• malleability, high density

• luster, malleability

• ductility, conductivity

Where are most metals on the periodic table?

• on the left side and in the middle

• on the right side only

• on the left side only

• in the middle only

Which element is a metalloid.

• carbon

• aluminum

• silicon

• oxygen

Iodine is a solid nonmetal. What is one property of iodine?

• malleability

• conductivity

• dull appearance

• ductility

Where are most nonmetals located on the periodic table?

• on the left side and in the middle

• in the bottom row

• on the right side

• ductilityin the top row

Which element is most likely to react with potassium?

• nickel

• calcium

• bromine

• sodium

Which group of elements can act as semiconductors?

• halogens

• noble gases

• metalloids

• metals