Ch.2 - Atoms & ElementsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: The mass number of common krypton is 84, and its atomic number is 36. Krypton-84 has how many neutrons within each isotope?

Solution: The mass number of common krypton is 84, and its atomic number is 36. Krypton-84 has how many neutrons within each isotope?

Problem

The mass number of common krypton is 84, and its atomic number is 36. Krypton-84 has how many neutrons within each isotope?

Solution

We are asked to determine the number of neutrons of Krypton-84 with an atomic number of 36.

Recall that for a neutral atomthe atomic number is the number of protons and the number of protons equals the number of electrons


Atomic Number = # protons = # electrons


We are given with the atomic number (36) which means that we have 36 protons and 36 electrons.


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