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Topic 1 : IGCSE Chemistry Topic 1 Basic Concept

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Published in: Chemistry
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Here we will discuss about the atoms , electron, proton , neutron , elements compounds and the isotopes

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  1. IGCSE CHEM TOPIC KEY ATOMS , ELEC MODELS OF T LEARN CHEMISTRY WITH BABR TRY, cambridge , AQA ,EDXCEL, OXFORD ONCEPTS OF CHEMISTRY ON ,PROTON , NEUTRON , SHELLS ATOMS
  2. WG4AT uS ATOM ? Atoms are defined as "the basic building blocks of matter". Atom is the basic of all matter. They are very small and consist of even tinier particles. Neutrons, Protons, and Electrons are the basic particles making up the atom. They join together with other atoms and create matter. It takes many atoms to create anything. @ It is the smallest constituent unit of matter that possess the properties of the chemical element. Atoms don't exist independently, instead, they form ions and molecules which further combine in large numbers to form matter that we see, feel and touch.
  3. OF ATOM ELCECTRON . Electron contains the negative charge its revole around the nuclus ; electron is responsible for the making of bonds. NEUTRON The neutron is a subatomic particle, symbol , which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms
  4. PROTON 2. 3. 4. Proton is present in the nucleus It has positive charge . Its number is also called atomic number of an elements Elements in the periodic table also based on the proton number
  5. OF AN ATOM 6 protons + 6 neutrons e electron proton o neutron Carbon atom
  6. WHAT uS ATOW\AC "SS ATOMAC Atomic number he atomic number of an element is determined by the number of protons in it, and it is used to differentiate one element from another. It is represented by the symbol Z. Atomic mass Atomic mass is the sum of proton and neutron . @ It is represented by the the number of neutron can be determind by this formula mass of neutron = A- Z
  7. -E OF ATOMIC NUMBER EX NOI Wha is the atomic number of carbon and how r resent ? CARBON has si proton in its nucleus ber will be 6 . So its atomic ere oxygen has 8 proton so its EX NO 2 . same er will be 8. atomic nu
  8. EXAMPLES OF ATOMPC MASS Megnasium Megnasium has 12 proton and 12 neutron , so overall its atomic mass will be 24 amu . mass of megnasium {Z} = Proton + neuton 12+ 12 = 24 NITROGEN NOTROGEN has 7 proton and 7 neutron , its atomic mass will be 14. so
  9. ANO chemical element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes.
  10. ANO chemical element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Water Compounds •um Chlori 1 Compounds - Compounds are chemical substances made up of two or more elements that are chemically bound together in a fixed ratio.
  11. @ isotopes can be defined as the variants of chemical elements that possess the same number of protons and electrons, but a different number of neutrons. In other words, isotopes are variants of elements that differ in their nucleon ( The total number of protons and neutrons) numbers due to a difference in the total number of pcctops in their respective nuclei
  12. EXAMPLES OF ASOTOPES Carbon 12 and Carbon 14 are both isotopes of carbon, one with 6 neutrons and one with 8 neutrons (both with 6 protons). The hydrogen element has three isotopes: hydrogen, deuterium, and tritium. We each have a single proton (Z = 1), but the number of their neutrons is different. There is no neutron in hydrogen, one in deuterium, and two neutrons in tritium.
  13. Hydrogen Deuterium Tritium

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