WHAT IS RADON? Radon is a radioactive gas that comes from the natural decay of uranium in the rock, soil and water under a home. You cannot see it, taste it, or smell it. Radon gas is drawn in to your home by the difference in air pressure between the interior of a home and the soil below. WHAT ARE THE HEALTH IMPACTS OF RADON TO YOU? Radon and Radon Decay Products are inhaled in to your lungs. As radon gas decays it releases small bursts of energy that can damage lung tissue.
The smallest particle of an element that retains any of the properties of the element. A basic unit of matter. It is the smallest particle of an element that still has the characteristics of that element. Every atom has a positively charged central nucleus, surround by a number of negatively charged electrons.
The atom is the smallest subdivision of an element which still retains the properties of that element. In fact, a very good definition of an atom is: the smallest part of an element that can enter into a chemical combination. There are around 118 elements known to man, of which 20-30 are really, really important.he parallel definition (to the element one above) for the molecule is: the smallest part of a compound that can enter into a chemical combination. Another definition, equally good, is that a molecule is the smallest stable part of a compound. Water is a typical example of a compound.