Presentation on theme: "OBJECTIVE □ SWBAT: Describe the parts of an atom and explain why chemistry is important in understanding biology."— Presentation transcript:
1 OBJECTIVE□ SWBAT: Describe the parts of an atom and explain why chemistry is important in understanding biology
2 CATALYST1. Imagine your body was chopped up into many pieces and put into a blender to separate all the elements. (WEIRD!) Guess which 4 elements you would find the most of?????
3 CATALYST Which 4 elements are the most common in the human body? Use the graph below to answer the following questionsCATALYSTWhich 4 elements are the most common in the human body?b. Which 2 elements compose a little over 25% of the body?c. Why do you think there is a lot of oxygen and hydrogen in the human body?
4 Section 6.1 Summary – pages 141-151 Carbon (C), Hydrogen (H), Oxygen (O), & Nitrogen (N) make up over 96% of the mass of a human body!!!PIE CHARTSection 6.1 Summary – pages
5 What are living things made up of? What are cells made up of?What are cell parts made up of?What are chemicals made up of?
6 Section 6.1 Summary – pages 141-151 ElementsEVERYTHING…whether it is a rock, frog, flower, or the air – is made of substances called elements.Guess how many elements have been discovered?117(a few are manmade)Section 6.1 Summary – pages
7 Everything (all living and nonliving things) are made of elements. An element is a substance that cannot be broken down into simpler chemical substances.What are elements made of?Atoms
8 More Notes! Atoms Parts of an Atom --make up elements --basic building blocks of all matterAtomsProtons (p+)Neutrons (n0)Electrons (e-)Parts of an Atom
9 SUBATOMIC PARTICLE CHARGE LOCATION IN THE ATOM PROTON POSITIVE In the NUCLEUSNEUTRONNo CHARGEELECTRONNEGATIVEIn the energy levels
10 Structure of an Atom Nucleus (protons and neutrons) Electron energy levels (electrons)
11 Insert into Cornell Notes: Parts of an atomNucleus and surrounding spacePositively charged protons (+)And neutrons with no chargeWhat is the nucleus made of?What makes an elementan element?The number of protons in the nucleus
13 Atomic number: Mass number: the number of protons in the nucleus the total number of particles in the nucleus(protons + neutrons)
14 The Periodic Table: A Key to the Elements State ofMatterElementAtomic #SymbolAtomic MassHydrogen1H1.008P + N
15 Periodic Table Atoms Atoms Protons Neutrons Electrons Nucleus 1. The ______________ _____________ shows all known elements in the universe. 2. All elements are made of __________________. 3. _______________ are the smallest particle of an element that retains its chemical properties. 4. Atoms are made of tiny subatomic particles called ______________, _______________, and_______________. 5. Protons and neutrons are in the _____________ of an atom. AtomsAtomsProtons NeutronsElectronsNucleus
16 positive neutral negative atomic number protons molecules Hydrogen 6. Protons have a ________________ electrical charge. 7. Neutrons have a ________________ electrical charge. 8. Electrons have a ________________ charge that attracts them to protons. 9. Atoms on the periodic table are organized by________________, which is really the number of ______________ 10. Different types of atoms can bond together to make ________________. 11. Water is 2 atoms of ______________and 1 atom of ____________. neutralnegativeatomic numberprotonsmoleculesHydrogenOxygen
17 Mass number or Atomic Mass: Atomic number:Mass number or Atomic Mass:the number of protons in the nucleusthe total number of particles in the nucleus(protons + neutrons)
18 RECALL The Periodic Table: A Key to the Elements State ofMatterElementAtomic #SymbolAtomic Mass or Mass NumberHydrogen1H1.008P + N
19 Sulfur 16 S 32.06 16 16 S 16 P + N = Atomic Mass 32.06 16 Use the information about Sulfur from the periodic table to answer the following questions:What is the atomic number?What is the Chemical SymbolHow many electrons does Sulfur have?What is the atomic mass?How many neutrons does Sulfur have?Sulfur16S32.061616S16P + N = Atomic Mass32.0616