molecules&compounds

Front

What is a molecule?

Back

A molecule is 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 compound is a substance formed when two or more different elements are chemically bonded together.

Front

What is the chemical formula for methane?

Back

CH4

Front

What is the chemical formula for carbon dioxide?

Back

CO2

Front

What is the atomic weight of an element?

Back

The atomic weight is the average mass of an element's atoms, measured in atomic mass units (amu).

Front

How many protons does an atom of carbon have?

Back

6

Front

What is the significance of the periodic table?

Back

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

Front

What is the atomic number of potassium?

Back

19

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is made up of two or more atoms bonded together.

Front

What does the term 'valence electrons' refer to?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.