Periodic Table 7.PS.1.5

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals. They are found along the zigzag line on the periodic table.

Front

What does the atomic number represent in the periodic table?

Back

The atomic number represents the number of protons in an atom of an element.

Front

Which elements are classified as halogens?

Back

Fluorine, chlorine, bromine, and iodine are classified as halogens.

Front

What is the significance of the zigzag line on the periodic table?

Back

The zigzag line on the periodic table separates metals from nonmetals and indicates the location of metalloids.

Front

In a neutral atom, how do the number of protons compare to the number of electrons?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What are the main properties of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

What are the main properties of nonmetals?

Back

Nonmetals are generally dull, poor conductors of heat and electricity, and can be gases, liquids, or brittle solids.

Front

What is the role of the periodic table in understanding element properties?

Back

The periodic table organizes elements based on their atomic number and groups them by similar properties, helping to predict their behavior.

Front

What is a group or family in the periodic table?

Back

A group or family in the periodic table is a column of elements that share similar chemical properties.

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive and having one electron in their outer shell.