Periodic Table (Periods and Groups)

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, where elements with similar properties are grouped together.

Front

What are periods in the Periodic Table?

Back

Horizontal rows in the Periodic Table, indicating the number of electron shells in the atoms of the elements.

Front

What are groups in the Periodic Table?

Back

Vertical columns in the Periodic Table, indicating elements that have similar chemical properties and the same number of valence electrons.

Front

What is a metal?

Back

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

Front

What is a non-metal?

Back

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

Front

What is a metalloid?

Back

Elements that have properties of both metals and non-metals, often used as semiconductors.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of group number in the Periodic Table?

Back

It indicates the number of valence electrons in the outer shell of the elements in that group.

Front

What is the state of matter for most metals at room temperature?

Back

Most metals are solids at room temperature, with the exception of mercury, which is a liquid.

Front

What is the state of matter for non-metals at room temperature?

Back

Non-metals can be gases (like oxygen), liquids (like bromine), or solids (like sulfur) at room temperature.