The Atom Notes
... • Electrons move within a sphere-shaped region surrounding the nucleus • Most of an atom’s volume is the space where electrons move ...
... • Electrons move within a sphere-shaped region surrounding the nucleus • Most of an atom’s volume is the space where electrons move ...
Mixtures, Pure Substance and Isotopes
... By the end of this lesson you should be able to… • Solve isotope questions regarding their sub-atomic particles, notation and nomenclature ...
... By the end of this lesson you should be able to… • Solve isotope questions regarding their sub-atomic particles, notation and nomenclature ...
Chapter 5/6 Notes
... BIG SOLUTION: In 1913, Neils Bohr (Danish), stated that electrons could occupy fixed Chem Stud orbitals without giving off energy. ...
... BIG SOLUTION: In 1913, Neils Bohr (Danish), stated that electrons could occupy fixed Chem Stud orbitals without giving off energy. ...
Atom Review
... When atoms emit alpha, beta or gamma radiation, it is undergoing a radioactive decay. Decay occurs due to instability within the nucleus. As the ratio of protons to neutrons becomes more skewed, the nucleus becomes more unstable. All isotopes with an atomic number greater than 83 are unstabl ...
... When atoms emit alpha, beta or gamma radiation, it is undergoing a radioactive decay. Decay occurs due to instability within the nucleus. As the ratio of protons to neutrons becomes more skewed, the nucleus becomes more unstable. All isotopes with an atomic number greater than 83 are unstabl ...
Notes on Atomic Structure atoms
... same proportions (by mass and by number) of its elements This means a given compound always has the same composition, regardless of where it came from. ...
... same proportions (by mass and by number) of its elements This means a given compound always has the same composition, regardless of where it came from. ...
Chapter 4
... - located in group two (second column) - two valence electrons - less reactive than alkali metals ...
... - located in group two (second column) - two valence electrons - less reactive than alkali metals ...
Notepack - Hood River County School District
... 4.1 Atoms: Smallest particle of matter that retains it’s identity in a _______________ A. ______________ Atomic Theory. 1. All _________________ are composed of _____ ______________________ particles called ___________ 2. Atoms of the same element are __________________. Atoms of any one element ar ...
... 4.1 Atoms: Smallest particle of matter that retains it’s identity in a _______________ A. ______________ Atomic Theory. 1. All _________________ are composed of _____ ______________________ particles called ___________ 2. Atoms of the same element are __________________. Atoms of any one element ar ...
4. - period2chem
... There are small jumps in 1st ionization energy when there is an element with increased stability (full or half-full sublevel). Removing the 4th electron from aluminum represents removing a core electron. a. ionic, b. polar, c. ionic, d. nonpolar a. metallic, b. ionic, c. metallic, d. covalent, e. io ...
... There are small jumps in 1st ionization energy when there is an element with increased stability (full or half-full sublevel). Removing the 4th electron from aluminum represents removing a core electron. a. ionic, b. polar, c. ionic, d. nonpolar a. metallic, b. ionic, c. metallic, d. covalent, e. io ...
Atoms and Isotopes Worksheet
... 7. The # of protons in the nucleus of an atom is also known as the atomic _________ (mass/ number/ weight/ charge) 8. Which subatomic particles are found in the nucleus? ...
... 7. The # of protons in the nucleus of an atom is also known as the atomic _________ (mass/ number/ weight/ charge) 8. Which subatomic particles are found in the nucleus? ...
File
... The carbon-14 which is formed is radioactive and decays producing nitrogen again – there is therefore a fixed amount of carbon-14 in the environment which is a balance between the rate at which it is formed and the rate at which it decays ...
... The carbon-14 which is formed is radioactive and decays producing nitrogen again – there is therefore a fixed amount of carbon-14 in the environment which is a balance between the rate at which it is formed and the rate at which it decays ...
Chapter 2: Matter is Made up of Atoms
... • Theory: well tested explanation that explains many observations. May change over time • Law: fact of nature observed so often it is accepted as truth. Doesn’t change. ...
... • Theory: well tested explanation that explains many observations. May change over time • Law: fact of nature observed so often it is accepted as truth. Doesn’t change. ...
CHAPTER 2 - HCC Learning Web
... • An element is a substance that cannot be broken down to other substances by chemical reactions • A compound is a substance consisting of two or more elements in a fixed ratio • A compound has characteristics different from those of its elements ...
... • An element is a substance that cannot be broken down to other substances by chemical reactions • A compound is a substance consisting of two or more elements in a fixed ratio • A compound has characteristics different from those of its elements ...
Name: Date: ______ Period: Unit 3 – Atomic Structure Review
... 4. What were the major problems of Dalton’s atomic theory? Did not have an internal structure 5. Whose model was nicked name the plum pudding model? JJ Thompson 6. What was the most popular and widely accepted model of those that came out in rapid succession? JJ Thompson 7. Whose atomic model could ...
... 4. What were the major problems of Dalton’s atomic theory? Did not have an internal structure 5. Whose model was nicked name the plum pudding model? JJ Thompson 6. What was the most popular and widely accepted model of those that came out in rapid succession? JJ Thompson 7. Whose atomic model could ...
Atomic number
... electrons are moved to higher orbits. Electrons can only have allowed energies, not the energies between the allowed ones. It is like a person on a ladder who can stand on a 1st, 2nd, 3rd rung, but not between the rungs. Allowed orbits are called shells. They are characterized by the principal quant ...
... electrons are moved to higher orbits. Electrons can only have allowed energies, not the energies between the allowed ones. It is like a person on a ladder who can stand on a 1st, 2nd, 3rd rung, but not between the rungs. Allowed orbits are called shells. They are characterized by the principal quant ...
Chocolate Challenge - Waterford Public Schools
... Protons determine element’s identity # of protons is unique for each element Electrons determine element’s chemical properties Neutrons act as a “glue” for the protons to minimize charge repulsions ...
... Protons determine element’s identity # of protons is unique for each element Electrons determine element’s chemical properties Neutrons act as a “glue” for the protons to minimize charge repulsions ...
Section 4.2 The Structure of an Atom
... Monitoring Your Understanding Before you read, list in the table shown what you know about atoms and what you would like to learn. After you read, list what you have learned. For more information on this Reading Strategy, see the Reading and Study Skills in the Skills and Reference Handbook at the e ...
... Monitoring Your Understanding Before you read, list in the table shown what you know about atoms and what you would like to learn. After you read, list what you have learned. For more information on this Reading Strategy, see the Reading and Study Skills in the Skills and Reference Handbook at the e ...
Unit 1 – Atomic Structure
... 4. Periodic Table is in order of increasing atomic number B. Mass Number 1. The total number of protons and neutrons in the nucleus of an isotope C. Isotopes 1. Atoms of the same element that have different masses 2. All elements of the same element have the same # of protons, but may vary in the nu ...
... 4. Periodic Table is in order of increasing atomic number B. Mass Number 1. The total number of protons and neutrons in the nucleus of an isotope C. Isotopes 1. Atoms of the same element that have different masses 2. All elements of the same element have the same # of protons, but may vary in the nu ...
Exploring Atoms Name Watch the “Atoms” movie at http://www
... that retains its chemical properties. 5. Atoms are made up of three subatomic particles called ________________, _______________, and ______________. 6. The atom’s center or ____________ is a cluster of protons and neutrons. Protons have a ____________ electrical charge and neutrons have ____ electr ...
... that retains its chemical properties. 5. Atoms are made up of three subatomic particles called ________________, _______________, and ______________. 6. The atom’s center or ____________ is a cluster of protons and neutrons. Protons have a ____________ electrical charge and neutrons have ____ electr ...
Chapter 3 Review
... 13. Compare the penetrating power of alpha, beta, and gamma radiation. (ANS: alpha has the least, then beta and gamma has the greatest penetrating power.) 14. Why do nuclei need neutrons to be stable? (ANS: neutrons are like glue that holds positive protons together.) 15. What are the symbols for th ...
... 13. Compare the penetrating power of alpha, beta, and gamma radiation. (ANS: alpha has the least, then beta and gamma has the greatest penetrating power.) 14. Why do nuclei need neutrons to be stable? (ANS: neutrons are like glue that holds positive protons together.) 15. What are the symbols for th ...
The Periodic Table
... • Not shiny (dull) • Not malleable (brittle) • Not ductile • Poor conductors of electricity. ...
... • Not shiny (dull) • Not malleable (brittle) • Not ductile • Poor conductors of electricity. ...
The Atom
... • Protons have almost 2000 times as much mass as electrons • Electrons attract protons in nearby atoms • Attraction forms molecules ...
... • Protons have almost 2000 times as much mass as electrons • Electrons attract protons in nearby atoms • Attraction forms molecules ...
periodic table elements
... the center of each atom lies the atomic __________________, which consists of _____________and__________. The atomic number refers to the number of ______________ in the nucleus of the atom. Atoms typically have the same number of electrons as the number of protons. All atoms of the same element hav ...
... the center of each atom lies the atomic __________________, which consists of _____________and__________. The atomic number refers to the number of ______________ in the nucleus of the atom. Atoms typically have the same number of electrons as the number of protons. All atoms of the same element hav ...
Atomic Models
... (Pick one of my isotopes on the left side of the card). What is the atomic mass of that particular atom? 5. How many protons do I have (in the isotope)? 6. How many neutrons do I have (in isotope)? 7. How many electrons do I have if I am neutral(in isotope)? 8. (Pick an ion of the right side of the ...
... (Pick one of my isotopes on the left side of the card). What is the atomic mass of that particular atom? 5. How many protons do I have (in the isotope)? 6. How many neutrons do I have (in isotope)? 7. How many electrons do I have if I am neutral(in isotope)? 8. (Pick an ion of the right side of the ...