Unit 2 – The Atom
... elements than the reactant. • The product is an alpha, • Nuclear reactions must be beta, or gamma particle started, so there are 2 and ONE new atom. things on the left hand side. There is only ONE thing – Nuclear fission: makes 2 on the left hand side. or more much smaller atoms – Nuclear fusion: ma ...
... elements than the reactant. • The product is an alpha, • Nuclear reactions must be beta, or gamma particle started, so there are 2 and ONE new atom. things on the left hand side. There is only ONE thing – Nuclear fission: makes 2 on the left hand side. or more much smaller atoms – Nuclear fusion: ma ...
Ch L14 Atoms Elements the Mole
... ii. Electrons are arranged differently depending on the atom iii. Different forms of the same element can have different numbers of neutrons ...
... ii. Electrons are arranged differently depending on the atom iii. Different forms of the same element can have different numbers of neutrons ...
The Atom Power point - Effingham County Schools
... definition of an element as a substance that cannot be further broken down by ordinary chemical means. •It was also clear that elements combine to form compounds that have different physical and chemical properties than those of the elements that form them. Na + Cl → NaCl ...
... definition of an element as a substance that cannot be further broken down by ordinary chemical means. •It was also clear that elements combine to form compounds that have different physical and chemical properties than those of the elements that form them. Na + Cl → NaCl ...
Chemistry 11 – Course Outcomes
... Explain the hydrogen line spectrum in terms of Bohr Model of the atom State two differences between the Bohr model and the quantum mechanical model of the atom Draw an energy level diagram for a given atom Define valence shell and valence electrons Label the sublevels on an energy level diagram with ...
... Explain the hydrogen line spectrum in terms of Bohr Model of the atom State two differences between the Bohr model and the quantum mechanical model of the atom Draw an energy level diagram for a given atom Define valence shell and valence electrons Label the sublevels on an energy level diagram with ...
Chapter 3
... d. Atoms of different elements combine in simple _______________________________ to form ______________________________________. e. In chemical reactions, atoms are__________________________________________ _____________________________. Modern Atomic Theory 8. Which aspects of Dalton's theory have ...
... d. Atoms of different elements combine in simple _______________________________ to form ______________________________________. e. In chemical reactions, atoms are__________________________________________ _____________________________. Modern Atomic Theory 8. Which aspects of Dalton's theory have ...
Notes matter energy
... evidence of chemical change. Note that physical changes can give the same evidence as chemical change (for example, boiling makes gas bubbles), so it takes practice and experience to recognize the difference. Isotopes Isotopes of an element differ only by the number of neutrons in the nucleus. The m ...
... evidence of chemical change. Note that physical changes can give the same evidence as chemical change (for example, boiling makes gas bubbles), so it takes practice and experience to recognize the difference. Isotopes Isotopes of an element differ only by the number of neutrons in the nucleus. The m ...
CH 4
... Energy Levels- Levels (a.k.a. shells, shelves, and orbits) within the electron cloud. The electrons are at various distances from the nucleus. Electrons can move from one energy level to another by gaining and losing energy. {Example: closest-low energy is the ground state; farthest-high energy is t ...
... Energy Levels- Levels (a.k.a. shells, shelves, and orbits) within the electron cloud. The electrons are at various distances from the nucleus. Electrons can move from one energy level to another by gaining and losing energy. {Example: closest-low energy is the ground state; farthest-high energy is t ...
Name - shssci
... 13. (2 points) Tell me 2 parts of Dalton’s atomic theory that are still relevant today? All matter is composed of extremely small particles called atoms. Atoms of different elements combine in simple whole-numbered ratios to form chemical compounds. In chemical reactions, atoms are combined, separat ...
... 13. (2 points) Tell me 2 parts of Dalton’s atomic theory that are still relevant today? All matter is composed of extremely small particles called atoms. Atoms of different elements combine in simple whole-numbered ratios to form chemical compounds. In chemical reactions, atoms are combined, separat ...
Atomic Structure Atoms
... Atomic Structure The nature of atoms was deduced from important experiments conducted in the late 1800's up to the mid 1900's by scientists in Europe. Some of these include: Wilhelm Röntgen's discovery of x-rays in 1895. Antoine-Henri Becquerel's discovery of radioactivity one year later. J. J. Thom ...
... Atomic Structure The nature of atoms was deduced from important experiments conducted in the late 1800's up to the mid 1900's by scientists in Europe. Some of these include: Wilhelm Röntgen's discovery of x-rays in 1895. Antoine-Henri Becquerel's discovery of radioactivity one year later. J. J. Thom ...
Atomic Structure
... Contains the electrons Makes up most of the volume of the atom Negatively charged (electrons are negative) Electrons are small and essentially have no mass, so the electron cloud is mostly empty space ...
... Contains the electrons Makes up most of the volume of the atom Negatively charged (electrons are negative) Electrons are small and essentially have no mass, so the electron cloud is mostly empty space ...
Chapter 2 Law of Dalton`s Atomic Theory Law of Multiple
... – Molecular: which involve shared electrons and consist of electrically neutral, discrete particles called molecules – Ionic: which involve electron transfer and charged particles called ions ...
... – Molecular: which involve shared electrons and consist of electrically neutral, discrete particles called molecules – Ionic: which involve electron transfer and charged particles called ions ...
Atomic Theory
... 440 B.C. Thought matter was made of tiny particles Believed these particles could not be cut into any smaller pieces. Called this smallest particle, atom, which means not able to be divided ...
... 440 B.C. Thought matter was made of tiny particles Believed these particles could not be cut into any smaller pieces. Called this smallest particle, atom, which means not able to be divided ...
Page 1 of 3 Chapter 2 Essential Chemistry CONTENT I. Basic
... Due to great amounts of H-bonding, water molecules are more stable when they stay close to each other; it takes energy to break those bonds. Terms: 1. Cohesion: tendency to stay together: H2O-H2O 2. Adhesion: tendency to adhere to a solid: H2O-surface area Surface tension: water molecules have a spe ...
... Due to great amounts of H-bonding, water molecules are more stable when they stay close to each other; it takes energy to break those bonds. Terms: 1. Cohesion: tendency to stay together: H2O-H2O 2. Adhesion: tendency to adhere to a solid: H2O-surface area Surface tension: water molecules have a spe ...
Final Exam Review Day 1 - teacherstroh
... If you keep breaking down matter further and further, you will get to something called the… ...
... If you keep breaking down matter further and further, you will get to something called the… ...
Elements
... Generic form – referring to the atoms of element in various forms and combinations (e.g. the human body contains a lot of the element Oxygen) ...
... Generic form – referring to the atoms of element in various forms and combinations (e.g. the human body contains a lot of the element Oxygen) ...
Tendencies of ionic/atomic radii in the periodic table
... Tendencies of ionic and atomic radii in the periodic table Tendencies: 1. The atomic radii increase down a group (e.g. first group 157 – 272 pm) and within the s and p blocks, decrease from left to right across a period (e.g. second period 157 – 64 pm). 2. The atomic radii for elements following the ...
... Tendencies of ionic and atomic radii in the periodic table Tendencies: 1. The atomic radii increase down a group (e.g. first group 157 – 272 pm) and within the s and p blocks, decrease from left to right across a period (e.g. second period 157 – 64 pm). 2. The atomic radii for elements following the ...
Chemistry Standards Checklist
... a. Trace the source on any large disparity between estimated and calculated answers to problems. b. Consider possible effects of measurement errors on calculations. ...
... a. Trace the source on any large disparity between estimated and calculated answers to problems. b. Consider possible effects of measurement errors on calculations. ...
Name Test Review Chemistry Unit 2: The Atom 1. Fill in the blank
... Discovered the neutron. _______________________________ Created the first atomic theory based on experimental evidence. ___________________________ Discovered the electron. __________________________ Discovered the nucleus. ___________________________ Discovered the Law of Conservation of Mass. ____ ...
... Discovered the neutron. _______________________________ Created the first atomic theory based on experimental evidence. ___________________________ Discovered the electron. __________________________ Discovered the nucleus. ___________________________ Discovered the Law of Conservation of Mass. ____ ...
The Periodic Table - Mr. Green's Home Page
... Negative ions More electrons than protons Form by gaining electrons Happens to atoms with many valence electrons Fill up outer energy level ...
... Negative ions More electrons than protons Form by gaining electrons Happens to atoms with many valence electrons Fill up outer energy level ...
Atoms and Isotopes Worksheet
... 3. The atomic masses of two isotopes of Cobalt are 59 and 60. If Cobalt has 27 electrons, what is the number of protons and neutrons in each isotope? ...
... 3. The atomic masses of two isotopes of Cobalt are 59 and 60. If Cobalt has 27 electrons, what is the number of protons and neutrons in each isotope? ...
Document
... 65) A sample of sodium metal is available in lab along with water, calcium chloride, and a Bunsen burner. Using any combination of these substances and common lab equipment, suggest a procedure below which will produce at least one new compound. Write a reaction to show how the new compound(s) form( ...
... 65) A sample of sodium metal is available in lab along with water, calcium chloride, and a Bunsen burner. Using any combination of these substances and common lab equipment, suggest a procedure below which will produce at least one new compound. Write a reaction to show how the new compound(s) form( ...