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Atomic Structure notes

283 notes by 226 users · Page 3 of 8

This Atomic Structure page on GoConqr gathers notes on atoms, the periodic table and electronic configuration. With over 230 notes from more than 180 users, it offers mostly secondary-level material for school students revising atomic structure and teachers choosing revision resources. Pick a note to start exploring.

Atomic Structure - created from Mind Map Classical atomic model Dalton's atomic theory Dalton's model : solid sphere 1. Matter consists of tiny particles called atom. 2. Atoms of one element are identical in mass. 3. Compounds are the combination of atoms wi... Chuleeporn Thanomsilp
*Atoms, Ions and Compounds Atomic Structure and Isotopes PROTONS = charge of +1, mass of 1 NEUTRONS = charge of 0, mass of 1 ELECTRONS = charge of -1, mass of 1/1836 (0) Periodic table is arranged in order of ATOMIC NUMBER (number of protons) M... Rhea Sekhon
Chemistry Unit 1: 1.4: Mass Spectrometry - created from Mind Map_1_1 Quick definition:The mass spectrometer determines very accurately, the relative atomic mass of an isotope! What Happens in a Mass Spectrometer? In a nutshell: atoms are converted into ions, (remember ions?) accelerate... Daena Targaryen
Untitled ATOMIC STRUCTURE -         An atom is made up of 3 particles: protons (+ve), electrons (-ve) and neutrons -         Atoms are neutral bec... Vivien Hawthorn
Element Test Atomic Number: The number of protons in the nucleus of the atom. This determines an elements place on the periodic table Element Symbol Atomic Mass: The mass of any kind of atom. Usually expressed in atomic mass units evaarena12
Development of the Model of the Atom Development of the Model of the atom: Democritus:                                           -Matter co... Victoria Lim
The Atom The proper name for particles are ATOMS. Everything around us is made up of tiny atoms. Atoms are made up of 3 smaller particles called;        - Protons     &nbs... emmaconvery
Module 2 Chemistry Chemical Bonding and energy Radiation is emitted when an electron in an excited atom jumps to a lower energy level. (Light is emitted) Energy of radiation is greater for shorter wavelengths. Lines of emission spectrum... nadiahollander
chapters 1-5 chemistry revision (key notes) chapter 1 pages-14-46   elements and compounds an element is a substance that cannot be broken down. all elements are listed in the periodic table.   copper is an element. It cannot be broken down into any s... Frederick Marshall
Atoms, Elements & Compounds Atoms All atoms consist of a nucleus and a cloud of electron that move around the nucleus. The nucleus is made up of protons and neutrons. Subatomic Particle Mass Charge Where Proton 1 +1 nucleus Electrons 1/2000 -1 s... Shobihan Sutharsan
:Atoms and Molecules Notes Definitions Atom - The smallest unit of matter that can exist of an element. Compound - A molecule containing two or more different atoms bound together. Element - A fundamental substance that has a unique atomic numb... Xiang Lin Goh
Untitled Neutrons and protons, subatomic particles of the nucleus, are held tightly together by nuclear forces. If it weren’t for these forces, then protons would be pushed away from the nucleus. ● There is also an attractive ... Tivmin Pannipitiya
Topic 1b - The Periodic Table Dmitri Mendeleev in 1969 was the first to sort the periodic table because of their relative atomic mass and their physical and chemical properties, rather than their relative atomic mass or physical and chemical prope... Nishan Ranasinghe
Untitled Particle Theory 1. All matter is made up of small particles2. All particles of a pure substance are identical to each other and different from another pure substance3. All particles are constantly moving4. Partic... madison_trudeau
Atoms - creado desde un Mapa Mental Structure Atomic number (Z) = number of protons Mass number(A) = number of protons counted neutrons Atomic models Lali Hdez
Mass Spectrometry Mass spectrometer used to analyse elements or compounds - time of flight (TOF) mass spectrometer.Tells you relative atomic mass, relative molecular mass and relative abundance of isotopes. Electrospray Ionisation: Sam... Melissa Lamb
AS-Level Chemistry: Unit 1:The Atom - created from Mind Map The Structure of an Atom atoms form everything in our universe. They consist of three particles: the proton, neutron and electron. electrons have a -1 charge. protons have a +1 charge neutrons don't have a charge! ele... camillacao13
Chemistry GCSE revision C4 The discovery of atoms John Dalton published his 'atomic theory' in 1803Not totally correct...He imagined that atoms look like billiard ballsMAIN IDEAS: Elements are made from very tiny particles called atom... 12bbradshaw
Baron's AP Chemistry 2013 Important Concepts Atomic Theory Models of the Atom Structure of the Atom Protons, Neutrons, Electrons Isotopes Atomic Spectra Wave Mechanical Atom Energy Levels Electronic Signature Electron Configurations Valence El... KonSpiral
The Atomic Theory - created from Mind Map Atomic Structure Drawing Models Chemical Bonding rinkadink0207
SCIENCE C1.1 Revision Notes (Fundamental Ideas) What is an element?A substance that is only made from one type of atom. How are electrons arranged in an atom?Atoms are arranged in different energy levels. Where do we find all atoms?The Periodic Table! mmazeezah
Untitled Bohr's theory Electrons occupy the lowest available energy levels. The electrons are in their ground state.  When energy is given to an electron (either by heating or electricity), electrons are promoted to highe... 08aliso.burge
Ionisation Energies Ionisation EnergiesSpecification: Define the terms first ionisation energy and successive ionisation energies Explain that ionisation energies are influenced by nuclear charge, electron shielding and the distance of t... j6283
Atomic Structure Atomic Structure: A mass spectrometer is used to separate ions having nuclei of differing mass, which can also be used to help identify complex molecules. Ionisation: -A sample is placed in the spectrometer and if not... dirtywater hobi
Untitled The Mass Spectrometer Five Stages Vapourisation - A sample is injected into the unit. There is a very good vacuum inside which turns liquids into gases. Ionisation - High energy electrons are fired at the at... 08aliso.burge
Untitled Rutherford's model of the atom firing alpha particles at a piece of gold foil most alpha particles passed straight through small number repelled and bounced back atom is mainly empty space repulsion between alpha part... simonanananacome
Chemistry 1.4 Demonstrate understanding of aspects of selected elements Subject Content Atomic structure • Relate the number of protons, neutrons, and electrons in an atom or monatomic ions to the atomic number, mass number, and charge. • Know names and symbols of first 20 elements plus C... Isabel van der Hoorn
Chapter 4 Notes 1. Subatomic Particles Electrons Negatively charged particle Electron cloud around nucleus Both a wave & particle like nature Heisenberger Uncertainty Principle - t is impossible to simultaneously know the positi... A D
c1.1 Atomic Structure LITHIUM METAL - Atoms are in rows as it is a solid, they vibrate in their lattice structure. one of the atoms look like this (image on the right) : centre = nucleusred circles - protons (positive char... bekg
Atoms - Describe the sub-particles of an atom and their physical properties as well as the term,Energy Levels, Maximum number of electrons in each energy level.Sub-particles : Electrons(-), Protons(+) & Neutrons(0)Energy le... kayxy_
The Structure Of an Atom Izzie Canning
Atoms and electrons Niels Bohr changed Rutherford´s model to incorporate newer discoveries about how the energy of an atom changes when the atom absorbs or emits the light.  -Orbits (energy levels in atoms) -Quantum (amount of energ... Katherine Marie Muller Ventura
Theories of the Atom Democritus Democritus state that everything is made up of atoms. These atoms are physically, but not geometrically, indivisible; between atoms lies empty space; atoms are indestructible; have always been, and always w... Raquel Heredia
What to memorise Chem L3 thermochemical Periodicity: Atomic radius Across a period the shielding effect stays the same because we are adding electrons to the same shell. The nuclear charge increases because we are adding protons to the nucleus. As a result,... Olivia McKenzie
Atomic Structure ~ Atom was divided into three particles-Proton-positive chargeNeutron-neutral charge (0)Electron-negative charge First,J J Thomson discovered the electron by cathode rays experiment. By the same experiment, Eugen Goldst... CoolSamir
Elements and Atoms Elements Different basic substances with different properties are called elements. Examples: Carbon (C), Oxygen (O), Gold (Au), Lead (Pb) Lucas Abounader
C4 - created from Mind Map Atomic structure Bonding Electrons: negative, 0 Olivia Whittle
The Electron Atoms are described more as waves than particles.Electrons: Electrons are wave particle dualities. Electrons are much like standing waves. Electrons exist in orbitals orbitals exist in shells an orbital can only be fi... Ashleigh Koehn
timeline: atoms Democritus (400 bc) He was a Greek Philosofer who thought that if you were to break an apple into little pieces, you would eventually get to a building block so small you couldn't be able to break it anymore. That bui... Javier Solares Pinillos
2.2 Isotopes How many neutrons The number nucleon there is the atom is call a nucleon number or mass number We can use the nucleon number and proton number to work out the number of neutron there is.Number of neutrons= Nucleon num... Visvamitra Ravindran

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