Chemistry and Physics: similarities and differences

La chimie et la physique : points communs et différences

IN BRIEF Physics: study of forces, energy, and the properties of objects. Chemistry: analysis of matter, molecules, and chemical reactions. Physical chemistry: intersection between physics and chemistry, focusing on the physical aspects of chemical systems. Physical transformations: changes of state (solid, liquid, gaseous) without altering the chemical composition. Chemical transformations: rearrangements of molecules, leading to … Read more

What is an atom? structure and properties

Qu'estce qu'un atome ? structure et propriétés

IN BRIEF Definition : An atom is the smallest unit of matter that retains the properties of a chemical element. Composition : Atoms are made up of a nucleus, containing protons and neutrons, surrounded by electrons. Dimensions : The size of an atom is extremely small, about one ten-millionth of a millimeter. Properties : The … Read more