PowerPoint describing the basic structure of atoms. Geared toward Middle School science and technology classes.
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1. Atoms What are they and what do they do?
2. What are atoms? Atoms are the smallest particles of matter
Atoms make up everything around us Molecules are combinations of
atoms Elements are only one type of atom Compounds are made up of
different types of atomsHydrogenWaterGas2 Dan Kelly - Magic of
Electrons - PLTW - Atoms 3. Atoms vs. ElementsWhat is the
difference between atoms and elements?Atoms make up elements.To be
an element, it can ONLY have ONE type of atom.The terms are often
used interchangeably.For example, the Periodic Table of the
Elements could also bewritten as the Periodic Table of Different
Types of Atoms.3Dan Kelly - Magic of Electrons - PLTW - Atoms 4.
Lets RecapWhat is an atom? Atoms are the smallest particles of
matter.What is an element? Elements are made up of only one type of
atom.What is a molecule? Molecules are combinations of atoms.What
is a compound?Compounds are made up of different types of
atoms.What are some examples of these? 4 Dan Kelly - Magic of
Electrons - PLTW - Atoms 5. Components of an AtomWhat makes up an
atom?At the center of all atoms is theNucleus.The nucleus contains
protonsand neutrons.Protons: (+)Positively charged atomic
particlesNeutrons:Uncharged (neutral) atomic particles5Dan Kelly -
Magic of Electrons - PLTW - Atoms 6. Components of an AtomWhat
makes up an atom?Orbiting around the nucleus are
theelectrons.Electrons: (-)Negatively charged atomicparticlesNature
prefers balance so if aparticle is positively charged, itwill
attract negatively chargedparticles and vice-versa.6 Dan Kelly -
Magic of Electrons - PLTW - Atoms 7. Components of an
AtomRecapWhere would you find the following parts of anatom and
what is its charge?Protons:In the center of the atomPositive
chargeNeutrons:In the center of the atomUnchargedElectrons:Orbiting
the atomNegative charge7Dan Kelly - Magic of Electrons - PLTW -
Atoms 8. Atomic NumberThe atomic number is equal to thenumber of
protons in the nucleusof an atom.The atomic number identifiesthe
element.How many protons are inthis nucleus?(assume the protons are
red)8 Dan Kelly - Magic of Electrons - PLTW - Atoms 9. Periodic
Table of Elements NASAWhich element has 4 protons?9Dan Kelly -
Magic of Electrons - PLTW - Atoms 10. ElectronsThis course is
titled Magic of Electrons and wewill focus mainly on the electrons
present in an atom.Why?It is important to understand how and why
electrons move inorder to understand how electricity works.In the
coming presentations we will cover the importance ofelectrons and
their importance.10Dan Kelly - Magic of Electrons - PLTW -
Atoms
