atom
An element is made up of only one kind of atom and cannot be broken down by chemical reactions. Each element is defined by the number of protons in its nucleus, which determines its unique properties.
An element is a substance that cannot be broken down into simpler substances by chemical reactions. Each element is made up of only one type of atom. Examples of elements include oxygen, gold, and carbon.
molecule
Helium is a chemical element and is the simplest and lightest noble gas in the periodic table. It cannot be broken down into simpler substances by chemical reactions, as it consists of only helium atoms.
An element is a substance made up of only one kind of atom and cannot be broken down by chemical reactions.
All of the elements of the Periodic Table cannot be broken down into simpler substances.
Base elements cannot be broken using a chemical reaction. Mollecules, which are made up of more than one element, can be broken using chemical reactions.
An element is a substance that cannot be broken down into simpler substances through chemical reactions.
An element is made up of only one kind of atom and cannot be broken down by chemical reactions. Each element is defined by the number of protons in its nucleus, which determines its unique properties.
An element is a substance that cannot be broken down into simpler substances by chemical reactions. Each element is made up of only one type of atom. Examples of elements include oxygen, gold, and carbon.
An element is a substance that chemical reactions cannot break down into simpler substances. Elements are made up of only one type of atom and cannot be further broken down by chemical means. Examples of elements include gold, oxygen, and carbon.
molecule
An example of a material that cannot be broken down into simpler substances is an element like gold or oxygen. Elements are composed of one type of atom and cannot be chemically broken down into simpler substances through ordinary chemical reactions.
Helium is a chemical element and is the simplest and lightest noble gas in the periodic table. It cannot be broken down into simpler substances by chemical reactions, as it consists of only helium atoms.
Elements cannot be reduced to simpler substances by chemical means. Each element is composed of identical atoms that cannot be broken down further through chemical reactions.
An element is a substance made up of only one kind of atom and cannot be broken down by chemical reactions.
No, aluminum cannot be decomposed into simpler substances. It is an element with the atomic number 13 and cannot be broken down into simpler materials by ordinary chemical reactions.