atoms and molecules and structure of the atom
Answers
Answer:
An atom is the smallest unit of matter that retains all of the chemical properties of an element. Atoms combine to form molecules, which then interact to form solids, gases, or liquids. For example, water is composed of hydrogen and oxygen atoms that have combined to form water molecules.
Answer:
Elements are substances consisting of one type of atom, for example, Carbon atoms make up the diamond, and also graphite. Pure (24K) gold is composed of only one type of atom, gold atoms. Atoms are the smallest particle into which an element can be divided. Now let us go in detail of the Structure of Atoms and Molecules. The very old Greek (people who think a lot about how people think) developed the idea of the atom, although they thought about/believed it the basic particle that could not be broken down. Since the work of Enrico Fermi and his fellow workers, we now know that the atom is divisible, often releasing huge/extreme energies as in nuclear explosions or (in a controlled fashion) (related to releasing the huge amount of heat locked inside atoms) power plants.
Explanation:
This structure of atoms and molecules unit explains the basic part of atoms and molecules. Subatomic particles were discovered during the 1800s. Protons have a charge of +1, and a mass of about 1 atomic mass unit (AMU). Elements differ from each other in the number of protons they have, e.g. Hydrogen has 1 proton; Helium has 2. The neutron also is located in the atomic center (of a cell or atom) (except in Hydrogen). The neutron has no charge and a mass of (a) little over 1 amu. Some scientists propose the neutron is made up of a proton and electron-like particle. The electron is a very small particle located outside the center (of a cell or atom). Because they move at speeds near the speed of light the exact location of electrons is hard to pin down. Electrons occupy orbitals or areas where they have a high (related to studying numbers) chance of happening. The charge on an electron is -1. Its mass is very, very small (about 1800 electrons are needed to equal the mass of one proton).