Question

Which of the following best describe an element?

Answer 1

Answer:

An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron.

Answer 2

An element is a substance that is made entirely from one type of atom.

Explanation:

• For example the element hydrogen is made from atoms containing a single proton and a single electron.
• An element is a substance that cannot be broken down into any other substance.
• There are about 100 elements each with its own type of atom.
• Everything in the universe contains the atoms of at least one or more elements.
• An element is uniquely determined by the number of protons in the nuclei of its atoms.
• The number of electrons in the atom of a specific element can vary.