The molar mass and Atomic mass are both important terms in chemistry. You can easily confuse one for another because both contain the word 'mass.' By definition, molar mass means the mass of a particular element or compound divided by the amount of substance in a mole.
That is the reason why the unit of Molar mass is usually gram/mol. Atomic mass, on the other hand, can be defined as the mass of an atom, which includes the addition of the number of protons and neutrons for that particular atom. Atomic mass does not have any unit. Atomic mass is very important to know, because, without it, you may find it difficult to determine the molar mass of a particular compound accurately.
For instance, to determine the molar mass of NaOH, you should know the atomic mass of the various consistent elements. The atomic mass of Sodium is 23; Oxygen is 16, and Hydrogen is 1. This means the molar mass of the compound is 40 g/mol.
There is the same number of electrons as protons in an atom. Inside the atom, electrons are arranged around the nucleus. The nucleus is surrounded by electron levels or shells. This is where the electrons ‘live’. Each electron shell can hold a certain amount of energy. This amount is 2 times the amount of energy an electron has squared; displayed as 2n^2 (n is the energy of the electron).
For the first 20elements, the electron shells can hold the same amount of electrons; 2 in the first electron shell, and a maximum of 8 electrons in the second and third electron shell. Electron shells closest to the nucleus have the lowest energy, and electron shells farthest from the nucleus, on the outside, have the highest energy. The arrangement of electrons in an atom determines it’s chemical properties and thus tells you what element it is. For example, fluorine has 9 electrons; 2 in the first electron shell, and 7 in the second electron shell.
You may not be aware of what NAD and FAD are. There are both known to be electron carriers, and they are expected to do many different roles. FAD stands for Flavin Adenine Dinucleotide whole NAD stands for Nicotinamide Adenine Dinucleotide.
NAD is known to be found in almost all living beings and is needed by the body, while FAD is known to contribute to a lot of metabolic reactions that are available. The main difference between the two is the number of hydrogen atoms that can accommodate. FAD can get up to two hydrogens, but NAD can only accommodate one. These two are both very useful in the Krebs Cycle.
An auxochrome is an assembly of atoms that will convey a specific color when connected to a chromosphere; however, when present alone, it will fail to produce the color. The chromosphere is the part of the molecule that, when exposed to visible light, absorbs and indicates a specific color. An auxochrome is a collection of atoms that is serviceable and possesses the ability to reflect colors.
Auxochrome adds the color of any organic element. Auxochromes are typically called “color helpers.” Chromophores also change the energy in the system. It gives the dyeing property of absorbing radiations, whereas auxochrome imparts it with the appearance of being colored. They are represented as nitrogen, carbon, oxygen, and sulfur, which generally have single or double bonds. Also, chromophores with double covalent bonds seem to be colored due to the heightened state of electrons.
A nonmetal atom or element does not have much or any metal in it. These types of elements have certain characteristics about them compared to the metals that are on the periodic chart. Nonmetals can be vaporized in simple ways and they can conduct heat. On the periodic table, there are 17 elements that are considered to be nonmetals. They are hydrogen, xenon, radon, krypton, fluorine, nitrogen, helium, oxygen, neon, argon, and chlorine.
These are the nonmetals that are gases. The other six elements that are nonmetals include sulfur, selenium, bromine, carbon, radon, phosphorus, and iodine. These are all solids except bromine which is a liquid. If you combined a nonmetal atom with a metal atom, the atom would become larger and there would be more electrons.
Each element has an electron configuration that corresponds to its proton number. These electrons are responsible for the reactivity of the element. Strontium is an alkali metal and alkali metal and is one of the most reactive elements on earth. It has a normal configuration with two valence electrons in its outer shell. However, as the element is excited, one of the eight electrons bump into the valence shell.
Ultimately, the new configuration becomes 2-8-18-7-3. This is how it binds to other atoms and creates strong compounds. It has many shells in its atoms, so the outer electrons are further away from the nucleus. This is what allows this phenomenon to occur.
Democritus was a philosopher from Ancient Greece. He lived prior to Socrates. He lived some time around 460 BC and 370 BC. Besides philosophy, Democritus also learned about science. He stated that everything in the world is made of atoms. Atoms always move about according to Democritus. He did not experimented with science in order to come to terms with this atom theory.
Atoms are the tiniest matter in the world that makes up things. It doesn’t matter what type of substance it is, it is still made of atoms. It could be a liquid, solid, gas or plasma. Democritus made the famous statement, but his teacher Leucippus is credited with discovering the atom. Instead of using experiments, these two philosophers used reasoning to determine what an atom is.