Unreactive elements that do not ordinarily form compounds and are found in the last group (18) on the periodic table are called...

• noble gases.

• metals.

• halogens.

• metalloids.

The atomic number of an element is equal to...

• the atomic mass.

• the number of neutrons.

• the number of protons.

• the number of neutrons and protons.

Fluorine, chlorine, bromine, and iodine are very reactive elements in the "salt forming" family called...

• halogens.

• noble gases.

• alkali metals.

• metalloids.

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

• Most metals are malleable, ductile, and can conduct heat and electricity.

• All metals are highly reactive.

• Metals are not corrosive/do not react with oxygen.

• Most metals are liquids.

Which group of elements have some properties of metals and some properties of nonmetals?

• noble gases

• metalloids

• halogens

• transition metals

A material is said to be ductile if it...

• can be pulled out, or drawn, into long wires.

• is a mixture of a metal with at least one other element.

• can be hammered or rolled into flat sheets and other shapes.

• can transfer heat or electricity to another material.

At room temperature, more than half of the nonmetal elements like oxygen, helium, and nitrogen are...

• solids

• liquids

• gases

• alloys

Tags

NGSS.MS-PS1-4

On the periodic table, most elements are...

• metalloids.

• nonmetals.

• transition elements.

• metals.

From an element's LOCATION on the periodic table, you can predict...

• its chemical symbol.

• when it was discovered.

• its properties.

• its chemical name.

Which of these statements about a column or group of the periodic table is true?

• The elements have the same atomic mass.

• The elements have similar physical and chemical characteristics. For example, all elements in a group/column have the same # of valence electrons.

• The elements have the same atomic number.

• The elements have a wide range of characteristics.