What is a chemical element?
o a collection of bonded atoms
an element only needed in small amounts by
the body
o a pure chemical substance made of one type
of atom
a molecule made of different types of atoms
done

O a pure chemical substance made of one type  of atom

A chemical element is a pure chemical substance made of one type of atom.

Explanation:

Each chemical element will be pure and they will be distinguished chemical properties and they are made up of one type of atom.

So each element in the periodic table of a chemical element which will be similar to single atom of each element. They are the smallest element as they are made of one atom only which cannot be divided further like one carbon element cannot be divided further to half or quarter of carbon element.

So the properties of each chemical element is the properties of single atom of the element.

b) nuclear ive learned that in a pedtrodic table