Understanding Nuclear Equations and Radioactive Decay Study Guide
This guide provides a comprehensive overview of nuclear equations, essential for understanding radioactive decay. It details the components of a nucleus (mass number and atomic number), the fundamental rules for balancing nuclear equations, and explains common decay processes such as alpha and beta decay with practical examples. The guide also touches upon other forms of nuclear change like positron emission, gamma emission, and bombardment, equipping learners with the knowledge to predict the o
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Nuclear Processes, Reactions, and Radiation Measurement
Writing Balanced Nuclear Equations
Learn to write a balanced nuclear equation for radioactive decay by showing mass numbers and atomic numbers.
- radioactive decay
- nuclear equations
- mass number
- atomic number
- alpha decay
- beta decay
- alpha particle
- beta particle
Writing Balanced Nuclear Equations
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Nuclear Reactions and Radiation Types
Information regarding positron emission, gamma emission, and producing radioactive isotopes through bombardment of stable isotopes.
- positron emission
- gamma emission
- radioactive isotopes
- bombardment
- alpha particles
- protons
- balanced nuclear equation
Half-Life of a Radioisotope
Calculating the amount of a radioisotope remaining after elapsed time and using radiological dating to determine the age of ancient objects.
- half-life
- radiological dating
- carbon-14
- carbon dating
- radioactive decay
Radiation Detection and Measurement
Describe the detection and measurement of radiation using instruments like the Geiger counter and various units of radiation activity, absorbed dose, and biological damage.
- Geiger counter
- curie
- becquerel
- sievert
- radiation absorbed dose
- biological damage
- dosimeters
- alpha particles
- beta particles
- gamma rays
Calculating Molar Mass and Using the Mole
Calculations Using Molar Mass
Use molar mass conversion factors to convert between grams and moles of an element or compound.
- molar mass
- conversion factors
- moles
- grams
- element
- compound
Understanding the Mole and Avogadro's Number
Use Avogadro’s number to determine the number of particles in a given number of moles.
- mole
- atoms
- molecules
- formula units
- conversion factors
- chemical formula subscripts
Calculating Atoms Using the Mole
Using Avogadro’s number and subscripts in formulas to convert moles of aspirin to atoms of oxygen.
- mole
- atoms
- subscripts in formulas
- conversion factors
Gas Laws, Moles, and Pressure Relationships
Volume and Moles at STP
Calculating the volume and grams of gases using conversion factors and molar volume at STP.
- volume at STP
- moles
- conversion factors
- grams of gas
- molar volume
Molecular Structures, Polarity, and Intermolecular Forces
Predicting Molecular Shape Using VSEPR Theory
Use VSEPR theory, Lewis structures, and electron groups to predict molecular shape and minimize repulsion around a central atom.
- VSEPR theory
- Lewis structure
- electron groups
- bonded atoms
- electron repulsion
- tetrahedral arrangement
- molecular shape
- trigonal pyramidal
- tetrahedral
Lewis Structures for Molecular Compounds
Lewis structures use Lewis symbols to diagram the sharing of valence electrons for single and multiple bonds in molecules.
- covalent bonds
- Lewis structures
- noble gas arrangement
- octet rule
- bonding pairs
- lone pairs
- diatomic molecules
- double bonds
- triple bonds
Naming and Formulas of Molecular Compounds
Molecular compounds form when atoms of two or more nonmetals share electrons to form a covalent bond.
- molecular compounds
- covalent bonds
- nonmetals
- prefixes
- naming molecular compounds
- chemical formulas
Electronegativity and Bond Polarity
Use electronegativity to determine the polarity of a bond and predict the type of chemical bond.
- electronegativity
- nonpolar covalent bond
- polar covalent bond
- electron sharing
- dipole
- electron sharing
- electron transfer
- periodic trends
Fundamentals of Radioactivity and Medical Applications
Introduction to Natural Radioactivity
Unstable nuclei spontaneously emit radiation such as alpha particles, beta particles, positrons, and gamma rays to become more stable.
- Natural radioactivity
- Unstable nuclei
- Radioisotopes
- Alpha particles
- Beta particles
- Positrons
- Gamma rays
- Mass number
- Atomic number
Medical Applications of Radioactivity and Imaging
Medical imaging techniques utilize radioisotopes, positron emission tomography, computed tomography, and magnetic resonance imaging to produce scans of organs and body tissues.
- Scans with radioisotopes
- Radioactive iodine-131
- Positron emission tomography (PET)
- Positron emitters
- Computed tomography (CT)
- Magnetic resonance imaging (MRI)
- Gamma rays
- X-ray beams
Radiation Exposure and Measurement
This content examines sources of naturally occurring and medical radiation exposure, the effects of lethal doses on various life forms, and the use of radiation for food treatment.
- naturally occurring radioisotopes
- cosmic radiation
- medical sources of radiation
- milliSievert
- Sievert
- radiation sickness
- gamma rays
- food irradiation
- activity
- absorbed dose
- biological damage
- becquerel
Naming and Writing Formulas for Ionic and Molecular Compounds
Naming and Writing Polyatomic Ion Formulas
Write the name and formula for an ionic compound containing a polyatomic ion.
- polyatomic ions
- ionic compounds
- charge balance
- naming polyatomic ions
- writing chemical formulas
- cations
- halogens
- nonmetals
Naming and Writing Formulas for Polyatomic Ions
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Naming and Writing Ionic Formulas
Naming ionic compounds with variable charge metals using Roman numerals and writing formulas by balancing charges.
- variable charge metals
- transition elements
- cations
- Roman numerals
- charge balance
- writing ionic formulas
- subscripts
Ions and Chemical Bonding Mechanisms
- ionic bonds
- molecular compounds
- covalent bonds
- octet rule
- metals
- nonmetals
- negative ions
- cations
- ionization energies
Writing Formulas for Molecular Compounds
Using prefixes to indicate subscripts for atoms in molecular compounds.
- molecular compounds
- prefixes
- subscripts
- nonmetals
- chemical formulas
Naming Ionic and Molecular Compounds
Classifying and naming ionic and molecular compounds based on whether constituent elements are metals, nonmetals, or polyatomic ions.
- Ionic compounds
- Molecular compounds
- Metals
- Nonmetals
- Polyatomic ions
- Ammonium
- Monatomic ions
- Roman numerals
- Prefixes
Properties and Formulas of Ionic Compounds
Ionic compounds consist of positive and negative ions with attractions called ionic bonds.
- ionic compounds
- ionic bonds
- positive and negative ions
- melting points
- chemical formula
- charge balance
- sodium chloride
Writing Ionic Formulas and Subscripts
- Chemical formula writing
- Subscripts in formulas
- Electron transfer
- charge balancing
- Magnesium chloride
- Sodium sulfide
Writing Ionic Compound Formulas
Determine the ionic formula for compounds formed with cations and anions by balancing charges to zero.
- ionic formula
- cations
- ionic compounds
- charge balancing
Fundamentals of Chemical Reactions and Stoichiometry
Mole and Mass Calculations in Chemical Reactions
Use balanced chemical equations, mole–mole factors, and molar mass to calculate the moles or mass in grams of substances in a reaction.
- mass calculations
- balanced chemical equation
- molar mass
- mole ratio
- mole-mole factors
- molar mass factors
- Law of Conservation of Mass
- Mole–mole factor
- Chemical reaction
- Mass of reactants
- Mass of products
Types of Chemical Reactions
Chemical reactions can be classified as combination, decomposition, single replacement, double replacement, or combustion reactions.
- combination reactions
- decomposition reactions
- single replacement reactions
- double replacement reactions
- combustion reactions
Energy in Chemical Reactions
Describe exothermic and endothermic reactions and factors that affect the rate of a reaction.
- collision
- orientation
- energy of activation
- exothermic reaction
- endothermic reaction
- heat released
- heat absorbed
Factors Affecting Chemical Reaction Rates
The reaction rate is the speed at which reactant is used up or product forms, influenced by temperature, reactant concentration, and catalysts.
- reaction rate
- temperature
- reactant concentration
- catalyst
- energy of activation
- collisions
Properties and Kinetic Molecular Theory of Gases
Properties and Kinetic Molecular Theory of Gases
This content describes the kinetic molecular theory of gases and the four properties used to describe a gas: pressure, volume, temperature, and amount.
- Kinetic molecular theory
- Pressure
- Volume
- Temperature
- Amount
- Atmosphere
- Kinetic energy
- Gas particle collisions
Properties of Gases and Pressure
Pressure is a measure of gas particle collisions measured in units such as atmospheres, millimeters of mercury, Torr, pascals, and pounds per square inch.
- Pressure
- Gas particle collisions
- Atmospheric pressure
- Barometer
- Mercury column
- Altitude
- Units for measuring pressure
- Atmosphere
- Millimeters of mercury
- Kilopascals
- Pounds per square inch
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