Element or Not an Element??

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It is made up of only one type of atom.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of all known chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

How can you identify if a substance is an element?

Back

A substance is an element if it appears on the periodic table and consists of only one type of atom.

Front

Can a substance be an element if it is not solid?

Back

Yes, elements can exist in different states: solid, liquid, or gas. For example, oxygen (O2) is a gas and is an element.

Front

What does it mean if a substance is not on the periodic table?

Back

If a substance is not on the periodic table, it is not considered an element. It may be a compound or a mixture.

Front

Are all metals elements?

Back

Yes, metals are a category of elements found on the periodic table, but not all elements are metals.

Front

What is an example of a non-element?

Back

Water (H2O) is an example of a non-element because it is a compound made of hydrogen and oxygen.

Front

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

Back

The atomic number represents the number of protons in an atom's nucleus and determines the element's identity.

Front

Can elements exist in different forms?

Back

Yes, elements can exist in different allotropes, which are different structural forms of the same element, like carbon as graphite or diamond.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements chemically bond together.