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LUCA SHIPOSH Element Builder Gizmo

Explore atoms with the Element Builder Gizmo! Learn how adding protons, neutrons, and electrons changes an atom’s identity, structure, charge. Discover how protons define the element and electrons orbit the nucleus. Great intro to atomic structure

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GizmosDate:sept 2SNameluca shiposhStudent Exploration: Element BuilderDirections: Follow the instructions to go through the simulation. Respond to the questions andprompts in the orange boxes.Vocabulary: atom, atomic number, electron, electron dot diagram, element, energy level, ion, isolope, massnumber, neutron, nucleus, periodic table, proton, radioactive, valence electronsPrior Knowledge Questions (Do these BEFORE using lhe Gizmo.)dough, lomalo sauce and cheesehydrogen and oxygeniron1.Whal are some of lhe different substancesthat make up a pizza?2.Whal substances make up water?3.Whal substances make up an iron pot?Elements are pure substances that are made up of one kind ofatom.Pizza is not an element because it is amixture of many substances. Waler is a pure substance, but it contains two kinds of atom: oxygen andhydrogen. Iron is an element because it is composed of one kind of atom.GizmoWarm-upAtoms are tiny particles of matter that are made up of three particles:protons, neutrons, and electrons TheElement Builder Gizmoshowsan atom with a single proton. The proton is located inlhecenter of theatom, calledlhe nucleus1.Use the arrow buttons (» ) Io add proIons, neutrons, and electronsto the atom. Press Play ().A.Which particles are locatedin the nucleus?neutronsBWhich particles orbit aroundthe nucleus?electronsG.Turn on Show elementnameWhat causes theelement name to change?proIons

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Activity A:r-Get lhe Gizmo ready:•Use the arrows to create an alom with Iwo proIons.Subatomicparticlestwo neutrons, and two electrons.•Tum on Show element name.Question: What are the properties of protons, neutrons, and electrons?1.Observe: Turnon Show element symbol and Element notation.Threenumbers surround the elemenl symbol: lhemass number(A),electricalcharge (no number is displayed if the alom is neutral), and lheatomicnumber(Z).2.Investigate: Watch how the numbers change as you add or remove particles.A.Which number is equal to lhe number of protons in lhe alom?atomic numberB.How can you calculate the number of neulronsin an atom?lhe mass numbersubtracted by lhe atomicnumberC.Which particle (proton, neutron, or electron) has aPositive charge?neulronsNegative charge?protonsNo charge al all?electrons3.Analyze: An isotope is an alternative form of an elemenl. Each isotope of an element has lhe samenumber of proIons, but a different number of neutrons. The isotope is represented by the atomic symboland mass number, such as He-4. Some isotopes are stable, while others are radioactive, which means lheatoms decay over time and emit radiation.A.B.C.What are the stable isolopes of carbon?What are the stable isolopes of nitrogen?List two radioactive isotopes of oxygen:carbon-13 carb on-12 oxygen-18 deuterium, isotopesof nitrogen and oxygen-16nitrogen 15 and nitrogen 14 and carbon 14oxygen-14 oxygen-134.Practice: Use lhe Gizmo to answer the following questions.A.How many electrons are in a neutral atom of lithium?B.How many neutrons are in an alom of Mg-25?C.What is the mass number of an alom with 5 protons and 7 neutrons?31312
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Chemistry

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