Question

a pure substance containing only one kind of

Answer 1

Answer:

A pure substance containing only one kind of_atom_ An element is always uniform all the way through (homogeneous). An element_cannot_ be separated into simpler materials (except during nuclear reactions). ... Often times (but not always) they come together to form groups of atoms called molecules.

Answer 2

A pure substance containing only one kind of atoms is called element.

Explanation:

• A substance that cannot be broken into simpler substance by any chemical means is called an element.

• An element is composed of atoms that have same atomic number.

• Each atom has atom has the same number of protons in its nucleus as all other atoms of that element.

• Examples of elements are carbon (C), potassium (K), sodium (Na) etc.

• All elements have properties like conductivity, magnetism, melting point, boiling point, color, state of matters and other.

• Reactivity is a measure of how easily an element will combine with other elements to form compounds.