They study first and then sometimes show it online, books and etc.
cuz they are dead moleculesType your answer here...
molecule
it shows the structure of atoms in an elements and elements that have mixed
The molecular formula doesn't show the arrangement of atoms within the molecule or the way atoms are bonded to each other. It also doesn't provide information about the three-dimensional structure of the molecule. Additionally, the molecular formula does not reveal any information about the physical and chemical properties of the molecule.
The structural formula show the spatial aspect of the molecule.
A molecule is the smallest unit of most chemical compounds. Scientists use a kind of shorthand called a chemical formula that shows the type and number of elements in a molecule. For example, a water molecule is written as H2O, which means there are 2 atoms of Hydrogen and 1 atom of Oxygen.
To write a condensed structural formula, use a simplified way to represent the atoms and bonds in a molecule. Instead of showing all the atoms and bonds, only the essential parts are included. This helps to quickly and clearly show the structure of the molecule.
Lewis dot structures show how an atom's electrons work together in a certain molecule. They also show what a certain molecule will look like.
in 1914 Henry mosely stated the modern periodic law. He said that when the elements are in order of increasing atomic number (number of protons) they show a periodicity or repeating pattern of properties.
A combination of symbols and numbers that describes a molecule is called a chemical formula. It represents the types of atoms present in the molecule and their respective ratios. The symbols represent the chemical elements (e.g., H for hydrogen, O for oxygen) and the numbers indicate the number of atoms of each element in the molecule. Chemical formulas are essential for understanding the composition and structure of molecules in chemistry.
the nucleus
The structural formula show the spatial aspect of the molecule.