Atoms, Elements, Molecules, Compounds

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a molecule?

Back

A group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded together.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom, contributing to its mass.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

How are elements organized in the periodic table?

Back

Elements are organized by increasing atomic number and grouped by similar chemical properties.

Front

What is the difference between a molecule and a compound?

Back

A molecule can consist of the same or different types of atoms, while a compound consists of different types of atoms.

Front

What is a chemical bond?

Back

A lasting attraction between atoms that enables the formation of chemical compounds.