The simplest substance that you can obtain by ordinary means is an element.
An element is a substance than cannot be separated or broken down into simpler substances by chemical means.
An element is a substance that is unable to be broken down chemically into another substance. A substance that can be broken down is known as a compound. An element is a pure chemical substance.
Atoms.
Elements are substances which contain only one type of atom and nothing else.
The only thing in chemistry, substance wise, that can not be broken down are elements. Mixtures can be broken down by physical means, and compounds can be broken down chemicaly
A chemical element.
Elements.
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an element
they are called chemical elements.
an element is a substance that cannot be broken down into a simpler form by chemical means
Compound
An element cannot be separated into simpler substances by chemical means.
methanolammonia (NH4)ammonia (NH4)
cannot be broken down into simpler substances by chemical means
A compound
they are called chemical elements.
This is the definition of an atom.
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
Compounds are made up of 2 or more elements.Compounds can be broken down into simpler substances by chemical means, but elements cannot.Compounds are made up of 2 or more elements. Compounds can be broken down into simpler substances by chemical means, but elements cannot.
Elements cannot be changed into simpler substances by chemical means. To change them into simpler particles, you need nuclear means.
A pure substance that cannot be broken down into simpler substances by physical or chemical means is an element. This is because Elements can't be broken down chemically into other substances because there is nothing to break them down into.
A pure substance that cannot be broken down into simpler substances by physical or chemical means is an element. This is because Elements can't be broken down chemically into other substances because there is nothing to break them down into.
While some compounds do degenerate to their elements when heated, almost none do.
A compound can only be separated into elements by chemical means.
an element is a substance that cannot be broken down into a simpler form by chemical means