CHAPTER 2 - Net Start Class
... o The results were astounding [poor Geiger and Marsden first suffered Rutherford’s wrath and were told to try again—this couldn’t be!]. Most of the particles did pass straight through, BUT many were deflected at LARGE angles and some even REFLECTED! Rutherford stated that was like “shooting a ...
... o The results were astounding [poor Geiger and Marsden first suffered Rutherford’s wrath and were told to try again—this couldn’t be!]. Most of the particles did pass straight through, BUT many were deflected at LARGE angles and some even REFLECTED! Rutherford stated that was like “shooting a ...
Electron Shells - rlas
... - upwards, downwards, or sideways - electrons can do it. The atomic shell, also called an _________________, is the distance from the nucleus that the electron spins. If you are an electron in the first shell, you are always closer to the nucleus than the electrons in the second shell. Electrons can ...
... - upwards, downwards, or sideways - electrons can do it. The atomic shell, also called an _________________, is the distance from the nucleus that the electron spins. If you are an electron in the first shell, you are always closer to the nucleus than the electrons in the second shell. Electrons can ...
Unit III Answers Pg 99 1. Bohr`s model proposed that the electrons
... 20. Elements of the halogen group have the same number of valence electrons. They all like to react by gaining one electron. They are all very reactive, reacting easily with many different metals. 21. The noble gases are the most unreactive group because they have 8 valence electrons (or a full ener ...
... 20. Elements of the halogen group have the same number of valence electrons. They all like to react by gaining one electron. They are all very reactive, reacting easily with many different metals. 21. The noble gases are the most unreactive group because they have 8 valence electrons (or a full ener ...
SNC1D Periodic Table and Atomic Structure Package
... chemical symbols that we use today was first proposed by the Swedish chemist Jons Jakob Berzelius (1779-1848). Eventually this system was accepted all around the world. It was accepted not only because it provided symbols for all the known elements, but also because it showed how to create symbols ...
... chemical symbols that we use today was first proposed by the Swedish chemist Jons Jakob Berzelius (1779-1848). Eventually this system was accepted all around the world. It was accepted not only because it provided symbols for all the known elements, but also because it showed how to create symbols ...
Chemistry - Beck-Shop
... patterns by arranging the elements into a ‘Periodic Table’. Modern versions of the Periodic Table are widely used in chemistry. (A Periodic Table is shown in the appendix on page 401 and explained, much more fully, in chapter 9.) ឣ All matter is composed of extremely small particles (atoms). About 1 ...
... patterns by arranging the elements into a ‘Periodic Table’. Modern versions of the Periodic Table are widely used in chemistry. (A Periodic Table is shown in the appendix on page 401 and explained, much more fully, in chapter 9.) ឣ All matter is composed of extremely small particles (atoms). About 1 ...
Nothing exists except atoms and empty space
... a question, your answer must be a correctly numbered restatement of the question or statement followed by a series of complete sentences. No phrases, partial answers or isolated numbers will be given credit! Your answer must stand alone without the reader knowing the question asked or statement made ...
... a question, your answer must be a correctly numbered restatement of the question or statement followed by a series of complete sentences. No phrases, partial answers or isolated numbers will be given credit! Your answer must stand alone without the reader knowing the question asked or statement made ...
2.1 The Nature of Matter
... called macromolecules. Macromolecules form by polymerization, in which smaller units called monomers join together to form polymers. Biochemists sort the macromolecules in living things into groups based on their chemical composition. Carbohydrates (starches and sugars) are composed of carbon, hydro ...
... called macromolecules. Macromolecules form by polymerization, in which smaller units called monomers join together to form polymers. Biochemists sort the macromolecules in living things into groups based on their chemical composition. Carbohydrates (starches and sugars) are composed of carbon, hydro ...
Ch. 3.1 ppt. Democritus to Dalton
... and other properties; atoms of different elements differ in size, mass, and other properties. • Atoms cannot be subdivided, created, or destroyed. • Atoms of different elements combine in simple wholenumber ratios to form chemical compounds. ...
... and other properties; atoms of different elements differ in size, mass, and other properties. • Atoms cannot be subdivided, created, or destroyed. • Atoms of different elements combine in simple wholenumber ratios to form chemical compounds. ...
Key Concept 1: An atom is the smallest unit of an element that
... Key Concept 7: Electrons are located outside of the nucleus and arranged by energy levels in the electron cloud. There are a certain number of electrons that each energy level can hold. ...
... Key Concept 7: Electrons are located outside of the nucleus and arranged by energy levels in the electron cloud. There are a certain number of electrons that each energy level can hold. ...
Elements and Compounds checklist for web
... -‐ Construct a model of an atom. Use any materials that you like. Your model must have a key. Distinguish between physical and chemical properties, using examples. • physical -‐ solid, liquid or gas - ...
... -‐ Construct a model of an atom. Use any materials that you like. Your model must have a key. Distinguish between physical and chemical properties, using examples. • physical -‐ solid, liquid or gas - ...
Matter and Energy
... Properties of Matter Practice 1. Describe each of the following properties as physical or chemical: a. neon is a color gas at room temperature b. apple slices turn brown when exposed to air c. phosphorus will ignite when exposed to air d. at room temperature, mercury is a liquid e. propane gas is c ...
... Properties of Matter Practice 1. Describe each of the following properties as physical or chemical: a. neon is a color gas at room temperature b. apple slices turn brown when exposed to air c. phosphorus will ignite when exposed to air d. at room temperature, mercury is a liquid e. propane gas is c ...
key concepts of matter
... protons located in its nucleus. Key Concept 2: Electrons are located outside of the nucleus and arranged by energy levels in the electron cloud. There are a certain number of electrons that each energy level can hold. Key Concept 3: Electrons located in the outermost shell of the electron cloud are ...
... protons located in its nucleus. Key Concept 2: Electrons are located outside of the nucleus and arranged by energy levels in the electron cloud. There are a certain number of electrons that each energy level can hold. Key Concept 3: Electrons located in the outermost shell of the electron cloud are ...
Note taker: ATOMS AND THE PERIODIC TABLE
... •Atoms are composed of a positively charged nucleus surrounded by an electron cloud. –________________ (99% of atom’s mass): uncharged neutrons and positively charged protons. –______________________________: negatively charged electrons in constant motion creating a “cloud” like a fan. ...
... •Atoms are composed of a positively charged nucleus surrounded by an electron cloud. –________________ (99% of atom’s mass): uncharged neutrons and positively charged protons. –______________________________: negatively charged electrons in constant motion creating a “cloud” like a fan. ...
Note taker: ATOMS AND THE PERIODIC TABLE
... •Atoms are composed of a positively charged nucleus surrounded by an electron cloud. –________________ (99% of atom’s mass): uncharged neutrons and positively charged protons. –______________________________: negatively charged electrons in constant motion creating a “cloud” like a fan. ...
... •Atoms are composed of a positively charged nucleus surrounded by an electron cloud. –________________ (99% of atom’s mass): uncharged neutrons and positively charged protons. –______________________________: negatively charged electrons in constant motion creating a “cloud” like a fan. ...
Notes: ATOMS AND THE PERIODIC TABLE Atomic Structure: • : the
... •Atoms are composed of a positively charged nucleus surrounded by an electron cloud. –________________ (99% of atom’s mass): uncharged neutrons and positively charged protons. –______________________________: negatively charged electrons in constant motion creating a “cloud” like a fan. ...
... •Atoms are composed of a positively charged nucleus surrounded by an electron cloud. –________________ (99% of atom’s mass): uncharged neutrons and positively charged protons. –______________________________: negatively charged electrons in constant motion creating a “cloud” like a fan. ...
Ionic Bonding - petersonORHS
... • Take out your Periodic Table and draw the electron dot notation for the first two elements in each group. The other elements in that group will be the same. >Use these example to help you draw dot notations. ...
... • Take out your Periodic Table and draw the electron dot notation for the first two elements in each group. The other elements in that group will be the same. >Use these example to help you draw dot notations. ...
EXAM II Total Points = 125 TA Tues
... closest to the nucleus and available for chemical reactions. farthest from the nucleus and available for chemical reactions. farthest from the nucleus and therefore unreactive. None of these answers is correct. ...
... closest to the nucleus and available for chemical reactions. farthest from the nucleus and available for chemical reactions. farthest from the nucleus and therefore unreactive. None of these answers is correct. ...
Chapter 4, Section 1
... light wave’s frequency (number of waves occurring per second). Plank related this energy to a quantum, the minimum amount of energy trhat can be lost or gained by an atom. 8. Einstein proposed that light waves were made of particles called photons and that metals must be struck by a single photon th ...
... light wave’s frequency (number of waves occurring per second). Plank related this energy to a quantum, the minimum amount of energy trhat can be lost or gained by an atom. 8. Einstein proposed that light waves were made of particles called photons and that metals must be struck by a single photon th ...
Atomic Structure Summary Sheet
... 1. If two or more different compounds are composed of the same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ra ...
... 1. If two or more different compounds are composed of the same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ra ...
Chemistry Midterm Review 2006
... us to observe flame tests? Is energy released or absorbed when an electron falls from a higher energy level to a lower energy level? 8. What is the difference between a ground state and an excited state? 9. What is the lowest energy level? The lowest sublevel? 10. What is the maximum number of elect ...
... us to observe flame tests? Is energy released or absorbed when an electron falls from a higher energy level to a lower energy level? 8. What is the difference between a ground state and an excited state? 9. What is the lowest energy level? The lowest sublevel? 10. What is the maximum number of elect ...
Atom - WCHS Physical Science
... a. Examine the structure of the atom in terms of • proton, electron, and neutron locations. • atomic mass and atomic number. • atoms with different numbers of neutrons (isotopes). • explain the relationship of the proton number to the element's identity. ...
... a. Examine the structure of the atom in terms of • proton, electron, and neutron locations. • atomic mass and atomic number. • atoms with different numbers of neutrons (isotopes). • explain the relationship of the proton number to the element's identity. ...
Teaching/Chemistry/Chemistry Lesson Plans 04
... o Most of the mass of an atom comes from the nucleus – neutrons & protons o Scientists have been able to determine the mass of an atom since the 1920’s Fluorine – 3.55 x 10-23g Arsenic – 1.244 x 10-22 g o Such numbers are too small to work with o Carbon-12 was chosen as the standard and given an ato ...
... o Most of the mass of an atom comes from the nucleus – neutrons & protons o Scientists have been able to determine the mass of an atom since the 1920’s Fluorine – 3.55 x 10-23g Arsenic – 1.244 x 10-22 g o Such numbers are too small to work with o Carbon-12 was chosen as the standard and given an ato ...