Electron Essays

  • Electrons And Protons Essay

    918 Words  | 4 Pages

    substance in the universe. They are made up of 3 subatomic particles called protons, neutrons and electrons. Protons have a positive charge, neutrons have no charge and electrons have a negative charge. Neutrons and protons are approximately similar in size as they both have an atomic mass of 1. His mass is relative to an element on the period table called carbon, which consists of an atom with 12 protons. Electrons however, are much lighter than protons and neutrons. In fact, they are 1837 times lighter

  • Electrons In Metals Lab Report

    842 Words  | 4 Pages

    Electrons in Metals Fallyn Walker 14423422 An electron is a negatively charged, sub atomic particle. It is a fermion, a particle named after the Fermi-Dirac statistics, which describes the electrons behaviour . Bohr proposed that the electron could move from orbitals. This could explain the spectrum for hydrogen but failed for other elements. The electron has a half integer spin, which leads to intrinsic angular momentum, a feature that all fermions possess. Pauli’s Exclusion principle states that

  • Chemistry: A Case Study Of Hydrogen Electron

    752 Words  | 4 Pages

    1 The hydrogen atom has one electron which can occur in 3s, 3p and 3d and since it is one electron it experiences the same nuclear charge (full nuclear charge). The effective nuclear charge felt by more than one electron in an orbital is not the same. This is due to electrons have the same charges, thus repel each other and shield the nucleus. Helium has two electrons; hence electrons repel each other and shield the nucleus. Additionally, the 1s orbital is close to the nucleus as compared to 3s

  • Bohr's Atomic Model And The Electron Cloud Model

    1723 Words  | 7 Pages

    Bohr’s atomic model and the Electron cloud model which were both made in the early 1900s . In 1913 the Danish physicist Niels Bohr had created Bohr’s atomic model showing the atom and how it was structured. Bohr’s atomic model was the first known model of an atom that incorporated the quantum theory and also was the predecessor for the wholly quantum- mechanical models that were constructed many years later. Before 1913 it was thought of that an atom had a nucleus with electrons orbiting around it in

  • Pre-Ap Physical Science: The Importance Of Electrons

    507 Words  | 3 Pages

    Dylan Clayton Mrs. Beckwith Pre-Ap Physical Science 9 7 December 2015 The Importance of Electrons Electrons are the negatively charged subatomic particles that revolve the center, nucleus, of an atom. They are arranged in different energy levels and they orbit around the nucleus like the Earth revolves around the Sun. Electrons are important in atoms, compounds, and chemical bonds involved in chemical reactions. These subatomic particles have importanance to the organization of elements into

  • Scanning Electron Microscope Experiment Results

    853 Words  | 4 Pages

    The purpose of this lab was to implement the use of a Scanning Electron Microscope (SEM) to examine and analyze metal samples that were subject to different failure tests. These failure tests included tensile tests, impact tests, and fatigue tests. SEM’s are useful because they provide a 3D view of the surface of the material, which improves the ability to examine the failure type at a microscopic level. In addition to this, the resolving power of a SEM is much stronger than that of a standard microscope

  • Copper Atom Research Paper

    1651 Words  | 7 Pages

    make up copper atoms. Each atom is made up of electrons, neutrons, and protons.

  • Chemical Bond Research Paper

    765 Words  | 4 Pages

    9-B A chemical bond is form with the joining of two or more atoms (when two atoms are joined they form molecules and compounds.) Which are being held together by the attraction (force attraction) of atoms through sharing as well as exchanging electrons. Chemical bonds are found in molecules, crystals, or in solid metals. They also organized the atoms in order structures. But why are they important you may ask? They’re important because every material or substance in the world depends on chemical

  • Thomson Atomic Model

    1135 Words  | 5 Pages

    until 1897 when Joseph John Thomson discovered the electrons which has a huge impact of the existing atomic model of Dalton. From his cathode ray experiment, he learned and discussed about the existence of electrons. Cathode ray experiment explored on cathode ray tubes which are vacuum tubes that consist of one electrode one each side of the tube, altogether consisting of two electrodes, when one of the electrodes or the “cathode” launches electron at the other electrode or “anode”, the voltage is

  • Essay On Scenario Scattering

    800 Words  | 4 Pages

    loosely bound outer shell electron. The outer shell electron is knocked out of the outer shell and this causes the initial photon to lose some of its energy. This results in a recoil electron and a scattered photon. When the collision happens the scattered photon changes direction and the recoil electron (Compton Electron) is the electron that was once on the outer shell is sent on its own path. The scattered photon’s energy can be calculated by subtracting the recoiled electron from the initial photon’s

  • The Importance Of Photoelectric Interactions

    919 Words  | 4 Pages

    Photoelectric interaction is one of the main interactions in producing x-rays. This occurs when an inner shell electron is knocked out leaving a hole that needs to be filled. It will be filled by an outer shell electron which will be filled by an auger electron eventually. Photoelectric interaction doesn’t have as much scatter compared to the other interactions. This is due to the photons being almost completely absorbed by the patient as the photons pass through the body to hit the image receptor

  • Pennies And Calorimetry Lab Report

    467 Words  | 2 Pages

    amount of sodium hydroxide. Literature review A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are shared pairs and bonding pairs, and the stable balance of attraction and a repulsive force between atoms, when they share electrons is called covalent bonding. Covalent bonding occurs when atoms share pairs of electrons. Another type of bonding is called a metallic bond. A metal bond is different form covalent and ionic bonds,

  • Cathode Ray Experiment Research Paper

    1085 Words  | 5 Pages

    which later led to the discoveries in the 1800s. The vacuum pump, which was a tube with electricity passed through with only some air particles, was a large part of finding and studying the relationship between charge and mass. There were metal electrons that were attached on the opposite sides of the tube, and the negative terminal of the battery is the cathode, and the anode is the positive terminal. While Sir William Crookes was experimenting, he saw a ray of light going through the tube. Later

  • Zinc Informative Speech

    326 Words  | 2 Pages

    it was used back in ancient time to make brass weapons, armor, and shields. This atom contains 30 protons and 30 electrons. It can be found in the 4th period and has 4 energy levels. In the first energy level there are 2 electrons. In the second there are 8 electrons. In the third, there are 18 electrons and in the fourth level, also known as the Valence shell has 2 valence electrons. The atomic mass is about 65 amu. There are about 10 Isotopes known to us and half of them are stable. This element

  • Atoms Dbq Research Paper

    297 Words  | 2 Pages

    a dense nucleus surrounded by a large cloud of electrons. The “cloud” of electrons surrounding the nucleus give off a negative charge. Electrons are a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. Inside the dense nucleus, are protons and neutrons (Doc. 2). Protons are a stable subatomic particle with a positive charge that is the opposite of an electron and occurs in all atomic nuclei. Lastly is the

  • John Dalton's Atomic Theory

    711 Words  | 3 Pages

    matter. Most of the space around these positive center had nothing in them. He thought that the electrons must exist somewhere within this empty space. Rutherford thought that the negative electrons orbited a positive center in a manner like the solar system where the planets orbit the sun.Rutherford knew that atoms consist of a compact positively charged nucleus, around which circulate negative electrons at a relatively large distance. The nucleus occupies less than one thousand million millionth

  • The Flame Test

    595 Words  | 3 Pages

    this lab, Petri dishes each containing a different metal ion were doused in ethanol and lighted using a lighter. The metal salts each burned a different color in the fire based on the identity of the ion. By placing atoms of a metal into a flame, electrons in an atom can absorb energy from

  • Zeeman Effect Theory

    1847 Words  | 8 Pages

    It is a known fact that atoms have quantised energies, that is, they can only have a discrete set of energy values. When irradiated by electromagnetic radiation, atoms absorb certain frequencies from the radiation thus transitioning between energy levels. If the incident radiation is compared with the one coming from the atoms, a continuous spectrum can be observed with frequencies matching those between the energy levels missing. The spectrum is unique to the element and displays the fact that the

  • John Rutherford's Contribution To The Atomic Theory

    838 Words  | 4 Pages

    the center of the gold atom” (Tretkoff, Ernie). This discovery is so important because protons are what define what element an atom is. Bohr also used that discovery to find that electrons travel in orbits around the nucleus. Rutherford’s model is called the “solar system model” because in his model because the electrons orbit the nucleus almost like they are like planets orbiting the sun. Rutherford paved the way for the modern model of the atom. He also theorized the existence of the neutron which

  • The Pros And Cons Of Organic And Inorganic Chemistry

    1064 Words  | 5 Pages

    class of reactions. These reactions can occur by a range of mechanisms, the two studied in this lab are the SN1 and SN2 reactions. In a nucleophilic substitution, the nucleophile is a electron rich chemical species which attacks the positive charge of an atom to replace a leaving group. Since nucleophiles donate electrons, they are defined as Lewis bases. The positive or partially positive atom is referred to as an electrophile. The whole molecule which the electrophile and the leaving group are part