the number of valence electrons in the outer shell are what determines the different properties
Compound!
Sodium is a highly reactive metal, while chlorine is a toxic gas. When they combine to form sodium chloride, they undergo a chemical reaction that results in the formation of a stable ionic compound due to the transfer of electrons. This compound exhibits different properties compared to the individual elements.
Elements can exist in the form of different isotopes. Isotopes of the same element have the same number of protons in their nuclei but have different numbers of neutrons. The first gives them the same atomic number and chemical properties while the second gives them different atomic weights.
organic molocules always contain carbon. In fact organic chemistry is simply the study of the carbon atomin molocules.
what atmosphere has almost no molcules
CO2
he properties of salts are different from the properties of elements that go into making them
Different names, different elements, different properties.
the electron
Its molocules are strongly bonded.
chemical reaction repulsion
physical properties