Elements and Compounds

Front

What is an element?

Back

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

Front

What is a compound?

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically combined.

Front

How many atoms are in H2SO4?

Back

There are 7 atoms in H2SO4 (2 Hydrogen, 1 Sulfur, 4 Oxygen).

Front

What is the periodic table?

Back

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

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the difference between an atom and a molecule?

Back

An atom is a single unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

What does 'amu' stand for?

Back

'amu' stands for atomic mass unit, a standard unit of mass that quantifies mass on an atomic or molecular scale.

Front

Can compounds be found on the periodic table?

Back

No, only elements are found on the periodic table; compounds are made from elements.

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a compound.