Atomic Theory - Electron Configuration - Week 1 PDF

"Dear Lord, PRAYER As we gather here to embark upon a journey of learning in the realm of science, we humbly ask for your guidance and blessings. Grant us the wisdom to explore the mysteries of the natural world, the curiosity to question, and the perseverance to seek un...

"Dear Lord, PRAYER As we gather here to embark upon a journey of learning in the realm of science, we humbly ask for your guidance and blessings. Grant us the wisdom to explore the mysteries of the natural world, the curiosity to question, and the perseverance to seek understanding. May this classroom be a place of inspiration, where we discover the wonders of creation and the marvels of the universe you have designed. Help us to approach each lesson with an open heart and a curious mind, ready to absorb knowledge and insights that will enrich our lives. We also pray for our teacher, who imparts their knowledge and guidance to us. Bless them with patience, clarity, and the ability to inspire a love for learning within each of us. Guide our thoughts and actions throughout this class, so that we may learn, grow, and contribute positively to the world around us. May our pursuit of knowledge align with your greater purpose for our lives. In your name, we pray.  WELCOME BACK STUDENTS!  WHAT TO EXPECT IN 2 ND QUARTER? Week 1: Atomic Models Week 2: Ionic and Covalent Compounds Week 3: Chemical Bonding Week 4: and 5: The Carbon Compounds Week 6: Classes and Uses of Organic compounds Week 7: The Mole Concept Week 8: Percentage Composition  MELC: Explain how the Quantum Mechanical Model of the atom describes the energies and positions of the electrons  UNIT 2: COUNTLESS AND ACTIVE PARTICLES OF MATTER MODULE 1: ELECTRONIC S T R U C T U R E O F M AT T E R ATOMI C MODELS HISTORIC BACKGROUND Who Am I? He considered atom as an INDIVISIBLE PARTICLE b a c DEMOCRI ATOM, THE TUS C. 300 BC INDIVISIBLE “atomos”- PARTICLE cannot be broken down into smaller pieces He proposed the SOLID SPEHERE MODEL b a c  JOHN DALTON C 1800 The Solid sphere model He developed the PLUM PUDDING OR THE RAISIN BREAD MODEL b a c  JJ THOMSON 1856-1940 Discovered the electron Developed the “PLUM PUDDING OR RAISIN BREAD MODEL PLUM PUDDING OR RAISIN BREAD Atom was MODEL composed of a positively charged sphere wherein the electrons were loosely embedded He developed the NUCLEAR MODEL OF ATOM LOUIS DE BROGLIE b a c  ERNEST RUTHERF ORD the Discovered protons and the nucleus Developed the NUCLEAR MODEL OF ATOM He developed the PLANETARY MODEL OF ATOM LOUIS DE BROGLIE b a c  NEILS BOHR 1885-1962 Developed the PLANETARY MODEL OF ATOM He proposed that ELECTRON COULD ALSO BE THOUGHT AS A WAVE LOUIS DE BROGLIE b WERNER KARL a c HEISENBERG LOUIS DE BROGLIE (1892-1987) He was awarded the 1929 Nobel Prize for Physics  He proposed that electron could also be He discovered the UNCERTAINTY PRINCIPLE. LOUIS DE BROGLIE b WERNER KARL a c HEISENBERG  WERNER KARL HEISENBERG (1901- 1976) He discovered that for a very small particle like the electrons, its location cannot He discovered the ELECTRON CLOUD MODEL. LOUIS DE BROGLIE b WERNER KARL a c HEISENBERG Let’s Recal l! Naming Element s F M Ar Ca N  WHAT IS ELECTRON CONFIGURATI ON? ARRANGEMENT OF ELECTRON ELECTRON CONFIGURATIO N Is the distribution of electrons within the orbitals of the atoms of an element. MAXIMUM NO OF sharp ELECTRONS 2 p rincipal 6 iffuse d 10 undamental f 14  ELECTRON CONFIGURATION MNEMONICS used to remember the order of “filling” of atomic orbitals 1s 1s2s 5s 2p3s3p4s3d 4 4d5p 2s 2p p 6s4f5d6p7s5f6d7p 3s 3p 3d 4s 4 4d 4f p 5s 5p 5d 5f 6s 6p 6d 6f 7s 7p 7d 7f  ELECTRON CONFIGURATION 2s 1s 2p 3s 3p KEY Si Susan Pumasok Sa Pintuan 4s3d 4 5s4d Si Daddy Pumasok p Sa Dilim 5p 6s4f 5d Pero Si Freddie Dumating 6p 7s5f 6d 7p Paano Si Freddie Daddy Paano? EXAMPLE: 1s2s2p3s3p4s3d 4 5s4d5p p 6s4f5d6p7s5f6d7p 1 1 H= 1s 2 2 1s He= 2 1 3 1s 2s Li= 2 2 4 1s 2s Be= 2 2 1 5 B= 1s 2s 2p WRITE THE ELECTRON CONFIGURATION OF 6- 10 ELEMENTS. 2 2 2 6 C= 1s 2s 2p 2 2 3 7 N= 1s 2s 2p 2 2 4 8 O= 1s 2s 2p 2 2 5 9 F= 1s 2s 2p 2 2 6 10 1s 2s 2p  1s2s2p3s3p4s3d 4 5s4d5p p 6s4f5d6p7s5f6d7p A Activity 1 ELECTRON CONFIGURATION c t # 4