Atomic Structure notes
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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.
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- Atoms, Elements and Compounds233
- Atomic Theory and Models276
- Subatomic Particles92
- Isotopes and Atomic Mass225
- Mass Spectrometry50
- Electron Configuration and Shells163
- Atomic Orbitals and Quantum Numbers55
- Emission Spectra and Flame Tests8
- Ions120
- Periodic Table and Trends317
- Ionisation Energy64
- Chemical Bonding163
- Separating Mixtures17
- Radioactivity11
- Moles and Quantitative Chemistry10
Notes
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Atomic Theory Matter is made out of atoms. The properties of the matter depend on the properties of the atom. Atom: the smallest unit of an element, it contains all properties of the atom. Atom is the smallest ide...
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Isotypes They have same number of ATOMIC NUMBER but a drifferent atomic mass. ATOMIC mass is weighted average mass of an tom of an element based on the revelative natural abudance of that isotopes Mass number is a count of the...
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Untitled What is an Atom? An Atom is the smallest particle of an element which can take part in a chemical reaction to form a new substance. Atomic size or atomic radius : At...
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Untitled ATOMS TO A 7 YEAR OLD ! Atoms contains protons, electrons, neutrons that makes up a element protons are part of a element, that is positive number neutrons are part of a element as well but it is a natural number elec...
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Chemistry Definitions Definitions Relative Atomic Mass- The relative atomic mass of an atom is the average mass of that atom on a scale where an carbon 12 atom is 12Isotopes- Isotopes are the same elements just with different numbers of ne...
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Untitled S Orbital : Groups 1, 2 and Helium Sphere &n...
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Untitled I If we change the neutrons (these are isotopes) that changes the weight of the element : changes the atomic mass If we change the electrons it changes into an ion (cations are when you loose electrons. If you want th...
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Untitled Atoms are the smallest part of an element. They are made from three different parts: protons , neutrons and electrons Molecules consist of two or more atoms joined together mainly by covalent bonds. Elements are subst...
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ATOMS - created from Mind Map DALTONS THEORY Composed of Subatomic particles Atomic #
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Chapter 4 Study Guide 4.1 Defining the Atom Democritus believed that atoms were indivisible and indestructible. By using experimental methods. Dalton transformed Democritus's ideas on atoms into a scientific theory. scientists c...
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Atoms, Molecules and Ions - Chapter 5 Structure of and atomAn atom is the smallest particle of any elements.Atoms consist of three subatomic particles. Electrons (e) - circle the nucleus in electron shells Protons (p) - found in the nucleus of an atom Neu...
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YR 11 CHEM UNIT 1 EXAM ATOMIC THEORY & THE PERIODIC TABLE Atomic Radius - the distance between the nucleus and last occupied shell First Ionisation Energy - the energy required to remove the most loosely held electron Elect...
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Learning outcome of atomic structure atomnuclideisotopeatomic number, Zatomic mass number, ADalton's assumption - quantisation of Energywave-particle dualityquantum numbers : n, l, ml, msdegenerate orbitalsorbital shadingPauli exclusion principleAufbau p...
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Mass and Electrical Charge Particle Mass ChargeProton 1 +1Neutron 1 0Electron Almost 0 -1The atoms of an element contain equal numbers of protons and electrons and so have no charge.
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Electrons in Atoms - There is only 1 orbital on the sublevel S, there is 3 orbitals on the sublevel P. - The principal quantum number equals the number of sublevels within that principal energy level. - A maximum of two electrons ...
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Atoms, Compounds, Isotopes Atoms Compounds and Isotopesto get the number of neutrons, subtract the atomic number from the mass number. Compounds - formed when 2 or more elements are chemically combined together Isoptopes - different atomic form...
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Science Atomic Structure. elements are the simplest substances. 100 different elements. each element is made up of very tin y particles called atoms. each element is made up of a particular atom, but it will be different to t...
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12.1.2 Explain how successive ionization energy data is related to the electron configuration of an atom Increasingly difficult to remove an electron each time, because an ion is becoming more and more positively charge In magnesium, the last two electrons are difficult to remove because there is no shielding 1...
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NEGATIVE IONS (ANIONS) - created from Mind Map always larger than their neutral atoms has more electrons as it gains electron during its formation when electron are added to an atom, repulsion between electron increases
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Untitled Atoms and MoleculesAn Atom is defined as the smallest particle of an element that can existConsists of 3 sub-atomic particlesProton - positively charged, relative mass- 1Neutron - 0 (no charge), relative mass- 1Electr...
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Ions An atom with 1 outer shell electrons are called valene ekectrons They are involved with chemical reactions. While the atom reacts it wants to form a remote outer shell It does this by losing or gaining electrons These...
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Isotopes Atoms of the same element must have the same number of protons but they can have a different number of neutrons. If an atom has a different amount of neutrons than normal they are called isotopes. Isotopes of an eleme...
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Chemistry Atoms, molecules, ions, bonds- atom is made up of neutrons, protons, and electrons. Molecules are groups of 2 or more atoms held together by chemical bonds. CHemical bonds are due to electron interactions.
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Modern Atomic Theory - created from Mind Map Chapter 4 Energy Orbitals
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Atoms - created from Mind Map Sub-Atomic Particles Ion Everything is made of atoms
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C4 Revision Summary What does the nucleus of an atom contain? Protons and neutrons What is the relative mass and charge of a neutron?Relative mass - 1 Charge - 0 Write the state symbols for each physical stateS (solid) L (liquid) G (gas)
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2.2.3 Calculate Non-integer Relative Atomic Masses and Abundance of Isotopes from Given Data %ABUNDANCE 34 35 36 37 IIIIIII
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Untitled atomic number - number of protons atomic mass - number of protons + neutrons protons - positive charge electrons - same number as protons just negative charges
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Untitled Ionisation energy - when an atom loses an electron and becomes a positive ion, it has become IONISED - the energy needed to remove the electron is called ionisation energy
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Rutherford-Bohr model of an atom - created from Mind Map Nucleus Electrons protons & neutrons
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GCSE Chemistry AQA Spec - created from Mind Map Atomic Structure and the Periodic Table Atoms Elements
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Elements of Life - created from Mind Map Atoms Atom Models Mass Spectrometry
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ATOMS Atoms come in a shell.Each atom has a nucleus in the centreThere are 2 electrons on the first shell layer - always 2The rest of the shell makes the number up to 8 electrons The number of protons is equal to the n...
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Mass and atomic number ATOMIC NUMBERnumber of protons ATOMIC MASS NUMBER number or protons PLUS neutrons
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Untitled ATOM AND BONDING (chpt 5) Element- a substance made up of one type of atom and cannot be split into simpler substances by chemical means. Compound- the bonding of two or more elements by chemical means, for example: S...
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atom part 2 STRUCTURE OF ATOM The number of electrons in an atom is equal to the number of protons in its nucleus. This means atoms have no overall electrical charge New Page
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Untitled subatomic partcal:electron -1 1proton +1 very smallneutron 0 1
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Untitled Chemistry Calculations Relative Atomic Mass
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Untitled 7 atomic massLi lithium3 atomic number3 protons and 4 neutrons3 electronsprotons = electrons O |
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Drawing Electron Configuration Drawing Electron configurations.