L2 Elements and Compounds Flashcard

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 a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together chemically. It has unique properties different from the individual elements.

Front

Which chemical formula represents an element?

Back

Front

Which chemical formula represents a compound?

Back

Front

What is a chemical formula?

Back

A chemical formula is a group of letters and numbers showing the types and numbers of atoms that make up a substance.

Front

Back

Front

What distinguishes elements from compounds?

Back

Elements are made up of the same type of atoms, while compounds are made up of different types of atoms.

Front

What is the smallest unit of an element?

Back

The smallest unit of an element is an atom.

Front

What is the smallest unit of a compound?

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The smallest unit of a compound is a molecule, which consists of two or more atoms bonded together.

Front

Can compounds be broken down into simpler substances?

Back

Yes, compounds can be broken down into simpler substances through chemical reactions.