Question 2.1: (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one mole of electrons. * ------------------------------------------------- Answer (i) Mass of one electron = 9.10939 × 10–31 kg Number of electrons that weigh 9.10939 × 10–31 kg = 1 Number of electrons that will weigh 1 g = (1 × 10–3 kg) = 0.1098 × 10–3 + 31 = 0.1098 × 1028 = 1.098 × 1027 (ii) Mass of one electron = 9.10939 × 10–31 kg Mass of one mole of
Premium Oxygen Carbon dioxide Mass
The subatomic particles of the element Nickel are: 28 protons‚ 30 neutrons‚ and 28 electrons. The primary form of nickel has a positive 2+ charge overall. The electron configuration is [Ar] 3d8 4s2.(Which breaks down to 2 electrons in the first level‚ 8 in the second‚ 16 in the third‚ and 2 valence electrons.) The element
Premium Chemical element Atom
different from an atom because of the number of neutrons in its nucleus. Finding the amount of neutrons in an atom can be calculated by subtracting the atomic number of a specific atom from its atomic mass. When looking at the periodic table‚ the atomic mass in the top left corner of every box is a decimal. The mass is in decimal format because the number listed is an average of that atom‚ plus all of its isotopes. Isotopes have different masses because neutrons weigh 1 amu where as an electrons weight
Premium
INTRODUCTION Archie Unleashed is an attempt to put the basic log analysis methodology for computing water saturation into a readable reference document. The beginning log analyst or petrophysicist should have little difficulty with the terms and concepts utilized in this paper‚ however‚ most terms are redefined in appendix A. The basic outline of this document closely follows a previous work written for the casual interpeter in log analysis. Archie Unleashed is meant to carry that work one step
Premium Density
number. That happens because of isotopes. An atom that is missing a neutron or has an extra neutron is called an isotope. They are still the same element; however‚ they are just a little different from every other atom of the same element. Most of the carbon atoms in the universe are Carbon-12‚ with 6 neutrons. A small percentage of carbon atoms are Carbon-13‚ with 7 neutrons‚ and an even smaller percentage are Carbon-14 and have 8 neutrons. Carbon-13 and Carbon-14 are isotopes of carbon. Atomic mass is
Free Chemical element Atom Carbon
an organization is to maximize profits in each type of market structure. Quasar Computers has done extensive research for the development of optical notebook. In 2003‚ Quasar launched the first all-optical notebook computer trademarked as ’Neutron ’. Neutron uses energy saving optical technology‚ which established it as the market forerunner (Tata Interactive Systems‚ 2014.). Below are examples of pricing and other decisions which were taken for this product in various market structures. Pure Monopoly
Premium Monopoly Decision making
Chemistry Pg. 1 Carbon Dating Carbon dating is the most reliable‚ commonly used‚ and useful dating method‚ for what it can date. It is used to date late Pleistocene and Holocene artifacts and geologic events up to 50‚000 years decayed. Carbon dating has been very beneficial to the scientific world‚ because it is used in so many different fields of science‚ including archaeology‚ geology‚ oceanography‚ hydrology‚ atmospheric science‚ and paleoclimatology. The radiocarbon dating method was developed
Premium Carbon Radioactive decay
NUCLEAR POWER PLANTS FROM INDIAN PERSPECTIVE “The discovery of nuclear chain reactions need not bring about the destruction of mankind any more than did the discovery of matches. We only must do everything in our power to safeguard against its abuse.” - Albert Einstein CHAPTER I INTRODUCTION AND METHODOLOGY Introduction 1. Energy is the prime mover of growth and is vital for the sustenance of modern economy. As a result‚ future economic
Free Nuclear power Nuclear fission Uranium
g) Atoms‚ Isotopes‚ and Atom Theories Using atomic number and mass # to count protons‚ electrons‚ and neutrons Atomic number= # protons= # electrons Mass number= protons+ neutrons (so: mass # - # protons= #neutrons) Isotopes- variation of neutrons in an element(top left corner of atomic symbol) H‚ H‚ H Counting protons‚ electrons‚ and neutrons in IONS Ion- # of electrons (top right # on atomic symbol) H‚ H‚ H Cation(metal)- lost/less electrons(+) Anion (non-metal)-
Premium Atom Stoichiometry Chemistry
atomic number in MiniLab: Modeling Isotopes‚ p. 102 How Atoms Differ 2 sessions 1 block determining the identity of an atom. 6. Define an isotope and explain why atomic masses are not whole numbers. 7. Calculate the number of electrons‚ protons‚ and neutrons in an atom given its mass number and atomic number. Section 4.4 8. Explain the relationship between Careers Using Chemistry: Radiation Unstable Nuclei and Radioactive Decay 2 sessions 1 block unstable nuclei and radioactive decay. 9. Characterize
Free Atom Electron