Periodic Table WebQuest

Front

What is the atomic number of an element?

Back

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

Front

What does the period number in the periodic table indicate?

Back

The period number indicates the highest energy level of electrons in the elements of that row.

Front

How many valence electrons does phosphorus have?

Back

Phosphorus has 5 valence electrons.

Front

What are noble gases?

Back

Noble gases are a group of elements in Group 18 of the periodic table that are mostly inert and do not readily react with other elements.

Front

What is the chemical symbol for an element?

Back

The chemical symbol is a one or two-letter abbreviation used to represent an element.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while mass number is the total number of protons and neutrons in an atom's nucleus.

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 valence electron.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are halogens?

Back

Halogens are the elements in Group 17 of the periodic table, known for being very reactive and having seven valence electrons.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.