Understanding Atomic Structure and Elements
Explore the basic sub-atomic particles and structures of hydrogen, helium, lithium, beryllium, and boron atoms. Learn about electron configurations and the nucleus. Dive into the atomic structures of the next 13 elements from carbon to argon, with details similar to boron. Reference the Periodic Table for further information.
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Atomic Structure Visit www.worldofteaching.com For 100 s of free powerpoints
All atoms are made up of just 3 basic sub-atomic particles:- Name: Proton. Mass: 1 Charge: +1 Name: Neutron. Mass: 1 Charge: 0 Name: Electron. Mass: 1/2000 Charge: -1
Mass Number The Simplest Atom H 1 1 Name: Hydrogen Atomic Number Atomic Symbol: H Mass Number (Number of Protons + Neutrons) = 1 Atomic Number (Number of Protons) = 1
The Next Simplest Atom He 4 2 Name: Helium Atomic Symbol: He The centre of an atom is called the NUCLEUS A Helium atom has two protons and two neutrons in its nucleus
The Next Simplest Atom Li 7 3 Name: Lithium Atomic Symbol: Li The orbit nearest the nucleus can only contain 2 electrons so the third electron must be in a new orbit. Electron Configuration: 2,1
The Next Simplest Atom Be 9 4 Name: Beryllium Atomic Symbol: Be This orbit has room for 8 electrons Electron Configuration: 2,2
The Next Simplest Atom B 11 5 Name: Boron Atomic Symbol: B 5p6n Electron Configuration: 2,3
For the next 13 elements (Carbon to Argon) draw their atomic structure and give details as for Boron. See the Periodic Table on p113 of your school planner or the inside back cover of your Revision Guide.
