Atom Essay

Atom is the cornerstone of matter. Everything around us is composed of atoms. The atom is one million times smaller than the thickness of the human hair. The smallest spot that can be seen with a normal microscope contains more than 10 billion atoms. Even though the atoms are very small, they are composed of small particles, namely protons, neutrons and electrons. These are called elementary particles. Each element has a certain number of elementary particles forming the center of atom called nucleus.

A proton is an elementary particle with positive charge, and it is composed of three quarks. Protons are one of the few stable particles that are individually stable. Proton Front ... Read more ...

The other two basic forces, gravity and weak nuclear forces also affect protons. Gravity attracts a lot. Weak nuclear power is a weak force that controls how some particles decompose into other particles.

Neutron is an electrically neutral particle with almost the same mass as the proton. Neutrons and protons are tightly bound within the nucleus. Each atom usually contains the same number of neutrons as a proton, but different atoms of the same element can have different numbers of neutrons. In essence, all four basic forces also affect electronic equipment. Because of mass, it is affected by gravity. Neutron has no electric charge, but it has electromagnetic force because it has a slight magnetism. Neutrons are also affected by strong nuclear power and weak nuclear power.

The electrons forming the other atomic layers have a negative charge. The negative charge of electron is -1.620 × 10 ^ -19 coulomb, the mass is 109 × 10 ^ - 31 kg. The number of electrons is equal to the atom's proton and balances the nuclear charge. Atomic electrons run around the nucleus. Electrons have more energy, the further they are from the core

An atom is defined by the number of protons and neutrons. The number of protons represents the number of atoms and determines which element is an atom. Neutron contributes to atomic stability and determines the number of isotopes. The most important stabilizing element found by humans is lead, and there is sufficient evidence that there are 82 protons. Due to the structural symmetry of the atoms, some isotopes of lead with different numbers of neutrons are stable for their "mysterious" number of protons. Normally, atoms with many protons and neutrons become asymmetric in atomic structure, become unstable and collapse into lighter elements. However, chemists have speculated that some of these very heavy elements may have stable isotopes

In order to understand what the radioisotope is, you must have a basic understanding of the atom. An atom is composed of three elementary particles: proton, neutron, and electron. A proton and a neutron combine to form a nucleus, and electrons are orbiting along orbits ... Further display ... In nuclear medicine diagnosis, a very small amount of radioactive substance is introduced into the body. Because medical isotopes are drawn to specific organs, bones, or tissues, the emissions they produce may provide important information on a particular type of cancer or disease. Information gathered during nuclear medicine technology is more comprehensive than other diagnostic imaging procedures to explain organ function as well as structure. As a result, we can diagnose many diseases and cancer early.

Atomic weight is calculated by counting the number of atoms and isotopes of the universe. For carbon, there are many C-12, one pair of C-13 and several C-14 atoms. If the average mass is average, the number obtained is slightly higher than 12 (weight of C - 12 atoms). The average atomic weight of the element is actually 12.011. We do not know in practice which carbon atom is used in the calculation, so we need to use the average mass of atoms. Bromine (Br) with atomic number 35 has more diverse isotopes. The atomic weight of bromine (Br) is 79.90. 79 and 81 have two major isotopes, with an average of 79.90 amu. There are 44 neutrons in 79, and there are 46 neutrons in 81. Although the average atomic weight does not change, scientists have produced bromine isotopes in the mass range of 68 to 97. This is completely related to the number of neutrons.