Periodic Table

Front

What is the main purpose of the Periodic Table?

Back

To organize and classify all known elements based on their properties and atomic structure.

Front

What does the atomic number of an element represent?

Back

The number of protons in the nucleus of an atom.

Front

What are groups in the Periodic Table?

Back

Vertical columns that group elements with similar chemical properties.

Front

What are periods in the Periodic Table?

Back

Horizontal rows that indicate the number of electron shells in the elements.

Front

What is the significance of the atomic mass?

Back

It represents the average mass of an element's isotopes, measured in atomic mass units (amu).

Tags

NGSS.MS-PS1-5

Front

What element is represented by the symbol 'Na'?

Back

Sodium.

Front

How can you determine the number of electrons in a neutral atom?

Back

By looking at the atomic number, which is equal to the number of protons and electrons in a neutral atom.

Front

What is a chemical symbol?

Back

A one or two-letter abbreviation used to represent an element.

Front

What does it mean if an element is in group 1 of the Periodic Table?

Back

It is an alkali metal, which is highly reactive and has one electron in its outer shell.

Front

What is the difference between metals and nonmetals in the Periodic Table?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.