How Elements are Grouped SC.8.P.8.6

Front

What are the three main categories of elements in the periodic table?

Back

Metals, non-metals, and metalloids.

Front

Who is credited with creating the first periodic table?

Back

Dmitri Mendeleev.

Front

What did Mendeleev predict about the gaps in his periodic table?

Back

They represented undiscovered elements.

Front

How are elements in the periodic table primarily arranged?

Back

According to their atomic number.

Front

What is a group in the context of the periodic table?

Back

A column of elements that often share similar properties.

Front

Which group does calcium belong to in the periodic table?

Back

Group 2.

Front

What is the significance of atomic number in the periodic table?

Back

It determines the position of an element in the periodic table and its identity.

Front

What are the properties of metals?

Back

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

Front

What are the properties of non-metals?

Back

They are usually dull, poor conductors of heat and electricity, and brittle.

Front

What are metalloids?

Back

Elements that have properties of both metals and non-metals.