This smallest "thing" is the atom.
A molecule
If that substance is an element, the smallest part is the atom which, if broken down further into atomic particles, loses its identity.
Chalk can be broken into pieces.
Elements can be broken down into smaller pieces: a compounds smallest particle is a molecule
To break into small pieces is to pulverize. If the substance is broken down far enough it will become powdered.
into smallest partical
A molecule
If that substance is an element, the smallest part is the atom which, if broken down further into atomic particles, loses its identity.
No, it is a physical change as the identity of the substance remains the same. Broken glass is still glass.
An atom is smallest particle there is and it cannot be broken down any more.
Chalk can be broken into pieces.
Elements can be broken down into smaller pieces: a compounds smallest particle is a molecule
To break into small pieces is to pulverize. If the substance is broken down far enough it will become powdered.
The simplest substance in chemistry is the element, because elements cannot be broken down, only changed. Of the elements, the smallest and simplest is hydrogen.
The root "mole" refers to heaviness or weight; these are pieces of matter. The suffix "cules" refers to the very small size of molecules; these are the smallest pieces of a given substance that retain the chemical characteristics of that substance.
An atom is the smallest particle of a substance.
An atom is the smallest particle of a substance.