is the tendency of similar particles to stick to one another
Answers
Answer:
attraction force ....
Answer: The tendency of similar particles to stick to each other is called cohesion. ... Cohesion is the property of like molecules - molecules of the same substance - to stick to each other due to mutual attraction. Adhesion is the property of different molecules or surfaces to cling to each other.
Explanation:
Cohesion is the property of like molecules - molecules of the same substance - to stick to each other due to mutual attraction. Adhesion is the property of different molecules or surfaces to cling to each other. In physics, it is defined as the intermolecular attractive force acting between two adjacent portions of a substance, particularly of a solid or liquid. It is this force that holds a piece of matter together.
You are aware that matter is made of atoms and that atoms are made of smaller stuff such as protons, neutrons and electrons. Protons and neutrons are made of quarks, but electrons aren’t. As far as we can tell, quarks and electrons are fundamental particles, not built out of anything smaller. For instance, light is made of particles called photons.
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A molecule, on the other hand, is the smallest part of a chemical element or compound that has the very same chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms. The atoms of certain elements readily bond with other atoms to form molecules. examples of such elements are oxygen and chlorine. The atoms of some elements do not easily bond with other atoms. Examples are neon and argon.
Molecules can vary greatly in size and complexity. The element helium is a one-atom molecule. Some molecules consist of two atoms of the same element. For example, O2 is the oxygen molecule; it has two atoms of oxygen. However, under certain circumstances, oxygen atoms bond into triplets (O3), forming a molecule known as ozone. When we have two hydrogen atoms, one sulfur atom, and four oxygen atoms - we have H2SO4 - sulfuric acid - and so on, more and more complex. Some molecules, especially of certain proteins, contain hundreds or even thousands of atoms that join together in chains that can attain considerable lengths.
Now you have seen the difference between particles and molecules.
Water molecules are attracted to one another and to surfaces by weak electrical attractions. When water molecules stick together by hydrogen bonds, it is known as cohesion. If there are several drops of water on a given surface, we can join them all to form one big drop. A water drop is composed of water molecules that stick together, there are an estimated 1.39 X 10^21 molecules in an individual droplet of water!