Atom

tubes bent into decorative designs. Neon is used very often because it as a noble gas. This is because the every atom has an electron shell, therefore the atoms do not react with other atoms and it becomes very difficult to remove an electron because it would take much energy. When a high-voltage electrical current passes through the neon gas, its energy can remove an electron. The atoms in the tube are moving around and hitting against each other which causes them to transfer energy to each…

are absorbed are determined by the electrons in a compound.1 As electrons move around, they can absorb energy and become excited. The energy, and thus the wavelength of light, the electrons absorb is determined by the type of atoms found in the compound and how those atoms are bound together. Different environments for electrons will also determine how much of a particular wavelength of light can be absorbed, a parameter which is reflected…

Before talking about the elements, the atom must be discussed first. Atoms are the building blocks of everything—from the structures of a building to a household pet. The idea of the atom was first suggested by Democritus, a Greek philosopher born in 460 BC. Democritus hypothesized “that atoms were indivisible and infinite in size and shape as well as firm and completely solid” and that they “existed in a void moving about combining and recombining” (European Graduate School). Later on, a…

In a chemical reaction, a new substance is created, while in a physical reaction, the substance is just changed aesthetically. In a chemical reaction, the number of atoms on each side must be balanced, meaning that nothing is destroyed or created in the reaction. On pg 72 of the interactive notebook, there is a diagram of a chemical reaction showing a reaction between carbon, hydrogen, and oxygen. On the reactant side…

Temazepam, commonly known as Restoril, is a sleeping pill that is prescribed to patients. This drug is classified under a type of drugs called benozaphines, which are, “a large group of drugs with sedative and anxiety-reducing properties, which have been found valuable for a large number of uses” (UXL Encyclopedia of Drugs and Addictive Substances). This class of drugs is used to reduce anxiety and help with insomnia. Since temazepam is classified as a benzodiazepine, I was curious as to what…

Atoms are made up of particles called neutrons, protons and electrons. Electrons have a negative electrical charge, protons have a positive electrical charge, and neutrons have no electrical charge. The neutrons and protons group together in the middle part of the atom, which is called the nucleus. An individual atom atoms will have at least as many neutrons as protons and it will have the same amount of electrons and protons. Atoms have a large amount of energy which holds their nuclei together…

John Dalton was born Sep 6, 1766 in a modest Quaker family in Cumberland, England. John always strived for a good education, but his family was very poor. When he was 12 he taught at the school he went to. When John was 14 he spent a year working as a farmhand, but went back to teaching at a boarding school in Kendal.Four years later and he was made principal of the school. When John was 26 he was a teacher of mathematics and natural philosophy at Manchester’s New College. In 1794, being his…

The atom is the smallest unit of matter. The name “atom” comes from the Greek word atomos, which means “uncuttable.” Atomic theory states that all matter is made up of these small particles, and that these atoms, and the matter made from them, cannot be created nor destroyed, merely reshaped and reformed. Modern chemistry unofficially began in the eighteenth century. French scientist Antoine Lavoisier discovered the law of the conservation of mass c. 1785. This law states that “The total mass…

the atom that had once been a theory of a Greek scientist named Democritus. However, unlike Democritus, Dalton was able to prove the existence of atoms. Through many experiments, Dalton came up with a list of properties, that he thought, all atoms shared. Each element is composed of atoms Atoms are tiny, featureless spheres All atoms of same element are identical in mass Compounds form when atoms of multiple elements combine A given compound always has some relative number and kinds of atoms The…

It is the lightest of the alkali metals. The two main parts of every atom are neutrons and protons. The three main subatomic particles that form an atom are protons, neutrons, and electrons. Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom. Protons has mass (g) of1.673 x 10-24, Mass (amu) is 1 and…