Atomic Mass
... Rutherford proposed that the nucleus had a particle that had the same amount of charge as an electron but opposite sign – the proton. Because protons and electrons have the same amount of charge, for the atom to be neutral there must be equal numbers of protons and electrons. ...
... Rutherford proposed that the nucleus had a particle that had the same amount of charge as an electron but opposite sign – the proton. Because protons and electrons have the same amount of charge, for the atom to be neutral there must be equal numbers of protons and electrons. ...
atoms - Tenafly Public Schools
... Discoveries that led to a refinement of Dalton’s simple atomic theory…. (OMG—there’s something inside of an atom!) ...
... Discoveries that led to a refinement of Dalton’s simple atomic theory…. (OMG—there’s something inside of an atom!) ...
First – How to write Outline Notes.
... Go to Dalton’s Playhouse: http://www.visionlearning.com/en/library/Chemistry/1/EarlyIdeas-about-Matter/49/reading (use internet explorer) Discuss each new discovery and ...
... Go to Dalton’s Playhouse: http://www.visionlearning.com/en/library/Chemistry/1/EarlyIdeas-about-Matter/49/reading (use internet explorer) Discuss each new discovery and ...
Quantum Mechanics and Atomic Theory (Chapter 12) vanKoppen
... In a neutral atom: the number of protons = the number of electrons. The mass of a proton ≈ the mass of a neutron ≈ 2000 times the mass of an electron. The number of protons in an atom = Z = atomic number. Z determines the element and its position in the periodic table. Generally, as Z increases the ...
... In a neutral atom: the number of protons = the number of electrons. The mass of a proton ≈ the mass of a neutron ≈ 2000 times the mass of an electron. The number of protons in an atom = Z = atomic number. Z determines the element and its position in the periodic table. Generally, as Z increases the ...
Build An Atom - ChemConnections
... a. The identity of an element and its position in the periodic table. b. Whether an atom is neutral or an ion (cation or anion) and its respective charge. c. Orbits versus clouds. d. The total mass ...
... a. The identity of an element and its position in the periodic table. b. Whether an atom is neutral or an ion (cation or anion) and its respective charge. c. Orbits versus clouds. d. The total mass ...
AP Chemistry Name: Ch.2 – The Nuclear Atom Date: Period:
... 3. Write balanced chemical equations for the following reactions: a. the decomposition of ammonium nitrate to nitrogen gas, oxygen gas, and water vapor. b. the reaction of sodium bicarbonate with sulfuric acid to produce sodium sulfate, water, and carbon ...
... 3. Write balanced chemical equations for the following reactions: a. the decomposition of ammonium nitrate to nitrogen gas, oxygen gas, and water vapor. b. the reaction of sodium bicarbonate with sulfuric acid to produce sodium sulfate, water, and carbon ...
Class Notes
... Matter: anything that takes up space and has mass Mass: the amount of “stuff” in an object ...
... Matter: anything that takes up space and has mass Mass: the amount of “stuff” in an object ...
Chapter 2 - Phillips Scientific Methods
... • Some chemical reactions go to completion: all reactants are converted to products. • All chemical reactions are reversible: products of the forward reaction become reactants for the reverse reaction. • Chemical equilibrium is reached when the forward and reverse reaction rates are equal. ...
... • Some chemical reactions go to completion: all reactants are converted to products. • All chemical reactions are reversible: products of the forward reaction become reactants for the reverse reaction. • Chemical equilibrium is reached when the forward and reverse reaction rates are equal. ...
Question, hints, and answers. Look at hints if you need help. Look at
... intermolecular forces *hint In the NH3 molecule, there is a covalent bond between N and H. But the N "wants" the electrons more than the H does, so it pulls them closer to itself. You end up with a little more than half the negative charge from the bond on the N, and a little less than half on the H ...
... intermolecular forces *hint In the NH3 molecule, there is a covalent bond between N and H. But the N "wants" the electrons more than the H does, so it pulls them closer to itself. You end up with a little more than half the negative charge from the bond on the N, and a little less than half on the H ...
Chap 1.
... A familiar device in modern technology is the photocell or “electric eye,” which runs a variety of useful gadgets, including automatic door openers. The principle involved in these devices is the photoelectric effect, which was first observed by Heinrich Hertz in the same laboratory in which he disc ...
... A familiar device in modern technology is the photocell or “electric eye,” which runs a variety of useful gadgets, including automatic door openers. The principle involved in these devices is the photoelectric effect, which was first observed by Heinrich Hertz in the same laboratory in which he disc ...
atom - Middletown Public Schools
... with a mass of 24.9858 amu, and the rest magnesium 25 with a mass of 25.9826 amu. What is the atomic mass of magnesium? If not told otherwise, the mass of the isotope is the mass number in amu ...
... with a mass of 24.9858 amu, and the rest magnesium 25 with a mass of 25.9826 amu. What is the atomic mass of magnesium? If not told otherwise, the mass of the isotope is the mass number in amu ...
,ALgor (JoWr z:
... The ionization energy of an atom or ion is determined by the following factors: nuclear charge, shielding effect and atomic radius (distance between nucleus and outer electrons). On moving across periods 1, 2 and 3 there is a general increase in first ionization energy. This is due to a large increa ...
... The ionization energy of an atom or ion is determined by the following factors: nuclear charge, shielding effect and atomic radius (distance between nucleus and outer electrons). On moving across periods 1, 2 and 3 there is a general increase in first ionization energy. This is due to a large increa ...
Name: Date: Period: _____ Unit 2 Notes, Part 1 – The Basics of
... (think H-NOF). These bonds are usually depicted with a dotted line. Because they occur between two different molecules and not within one molecule (like ionic or covalent bonds) and they occur between partial (not full) charges, hydrogen bonds are weaker than ionic or covalent bonds. 16. Chemical re ...
... (think H-NOF). These bonds are usually depicted with a dotted line. Because they occur between two different molecules and not within one molecule (like ionic or covalent bonds) and they occur between partial (not full) charges, hydrogen bonds are weaker than ionic or covalent bonds. 16. Chemical re ...
Summary of Atomic Structure so far…
... • it is a “big jump” so the light will have a short wavelength and be high energy 6c) When an electron moves from n = 4 to n = 3: • it moves closer to the nucleus • it will release (give off) energy • it will give off light of a specific wavelength (energy), the colour will depend on which atom the ...
... • it is a “big jump” so the light will have a short wavelength and be high energy 6c) When an electron moves from n = 4 to n = 3: • it moves closer to the nucleus • it will release (give off) energy • it will give off light of a specific wavelength (energy), the colour will depend on which atom the ...
FORMULA WRITNG
... 7) Write balanced equations for the following: (Review of Reactions) (a) propane gas (C3H8), which is used for heating, is burned with insufficient oxygen, the flame is yellow and smoky because the products are elemental carbon and water vapor. (b) Potassium chloride is synthesized from its elements ...
... 7) Write balanced equations for the following: (Review of Reactions) (a) propane gas (C3H8), which is used for heating, is burned with insufficient oxygen, the flame is yellow and smoky because the products are elemental carbon and water vapor. (b) Potassium chloride is synthesized from its elements ...
2.3 Periodic Table and Atomic Theory Bohr Diagrams
... not want to gain or lose electrons. This is why they do not react easily with other elements! ...
... not want to gain or lose electrons. This is why they do not react easily with other elements! ...
Here are the answers and work for your summer packet.
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
CMC Chapter 5
... Ground-State Electron Configuration • The arrangement of electrons in the atom is called the electron configuration. ...
... Ground-State Electron Configuration • The arrangement of electrons in the atom is called the electron configuration. ...
+ H 2 (g)
... The ability of an element to react is referred to as the element’s activity. The more readily an element reacts with other substances, the greater its activity is. An activity series is a list of elements organized according to the ease with which the elements undergo single replacement reactions. ...
... The ability of an element to react is referred to as the element’s activity. The more readily an element reacts with other substances, the greater its activity is. An activity series is a list of elements organized according to the ease with which the elements undergo single replacement reactions. ...
AP Chemistry Summer Packet ANSWERS
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
FINAL REVIEW - Normal Community High School Chemistry
... (b) When the space surrounding the burning object is filled with phlogiston, the object will no longer be able to burn. ...
... (b) When the space surrounding the burning object is filled with phlogiston, the object will no longer be able to burn. ...
Ticket to Passing Physical Science
... 1) All matter is made of atoms. (True) 2) Atoms are indivisible and indestructible. (False Atoms are divisible because they are made of even smaller particles – the proton, neutron, and electron). 3) All atoms of the same element are the identical (False isotopes of the same element have differen ...
... 1) All matter is made of atoms. (True) 2) Atoms are indivisible and indestructible. (False Atoms are divisible because they are made of even smaller particles – the proton, neutron, and electron). 3) All atoms of the same element are the identical (False isotopes of the same element have differen ...