Chapter 4 Quiz ____ 1. The Greek philosopher Democritus coined
... ____ 2. Which of the following is NOT part of John Dalton’s atomic theory? a. All elements are composed of atoms. b. All atoms of the same element have the same mass. c. Atoms contain subatomic particles. d. A compound contains atoms of more than one element. ____ 3. Rutherford’s gold foil experimen ...
... ____ 2. Which of the following is NOT part of John Dalton’s atomic theory? a. All elements are composed of atoms. b. All atoms of the same element have the same mass. c. Atoms contain subatomic particles. d. A compound contains atoms of more than one element. ____ 3. Rutherford’s gold foil experimen ...
Atomic Theory - Valhalla High School
... The dashed chain of numbers found in the lower left hand corner of an element box Tells the number of energy levels as well as the number of electrons in each level (how the electrons are arranged around the nucleus) ...
... The dashed chain of numbers found in the lower left hand corner of an element box Tells the number of energy levels as well as the number of electrons in each level (how the electrons are arranged around the nucleus) ...
A.P. Chemistry
... oxygen: is –2 in most compounds; -1 in hydrogen peroxides or peroxide ion hydrogen: is +1 , except when it is bonded with a metal in a binary compound; hydride ion is –1 fluorine: -1 in all compounds ...
... oxygen: is –2 in most compounds; -1 in hydrogen peroxides or peroxide ion hydrogen: is +1 , except when it is bonded with a metal in a binary compound; hydride ion is –1 fluorine: -1 in all compounds ...
Atomic Structure, Molecular Structure & Bonding
... – H is never central; C is often central 3. Draw in electrons to fulfill octet and duet rules – C “likes” 8 electrons; H “likes” 2 electrons 4. Count ve-’s and compare to #2 5. If too many e-’s, make a double bond 6. Calculate formal charge (FC) to double check structure – No or low FCs (e.g. +1) mo ...
... – H is never central; C is often central 3. Draw in electrons to fulfill octet and duet rules – C “likes” 8 electrons; H “likes” 2 electrons 4. Count ve-’s and compare to #2 5. If too many e-’s, make a double bond 6. Calculate formal charge (FC) to double check structure – No or low FCs (e.g. +1) mo ...
Chemical Reactions
... Predict the products using the type of reaction as a model Balance the equation ...
... Predict the products using the type of reaction as a model Balance the equation ...
Ch. 02 - HCC Learning Web
... of protons in its nucleus • An element’s mass number is the sum of protons plus neutrons in the nucleus • Atomic mass, the atom’s total mass, can be approximated by the mass number ...
... of protons in its nucleus • An element’s mass number is the sum of protons plus neutrons in the nucleus • Atomic mass, the atom’s total mass, can be approximated by the mass number ...
atom - BobcatChemistry
... The Chapter Resources Menu will allow you to access chapter specific resources from the Chapter Menu or any Chapter Outline slide. From within any feature, click the Resources tab to return to this slide. The “Return” button will allow you to return to the slide that you were viewing when you clicke ...
... The Chapter Resources Menu will allow you to access chapter specific resources from the Chapter Menu or any Chapter Outline slide. From within any feature, click the Resources tab to return to this slide. The “Return” button will allow you to return to the slide that you were viewing when you clicke ...
Atoms are not the smallest thing (download)
... effect is balanced by something which causes the space through which the corpuscles are spread to act as if it had a charge of positive electricity equal in amount to the sum of the negative charges of the corpuscles…” ...
... effect is balanced by something which causes the space through which the corpuscles are spread to act as if it had a charge of positive electricity equal in amount to the sum of the negative charges of the corpuscles…” ...
Practice exam - Dynamic Science
... 21) Pure ethanol can be produced from wine by a process best known as: a) b) c) d) ...
... 21) Pure ethanol can be produced from wine by a process best known as: a) b) c) d) ...
Chapter 13 Notes
... oxidation. Iron is gaining back electrons it had lost to become a free element so it is undergoing reduction. This is called an oxidation-reduction reaction or redox for short. Although this type of reaction is named for oxygen, many other elements undergo redox reactions with each other without oxy ...
... oxidation. Iron is gaining back electrons it had lost to become a free element so it is undergoing reduction. This is called an oxidation-reduction reaction or redox for short. Although this type of reaction is named for oxygen, many other elements undergo redox reactions with each other without oxy ...
Matter: The basics - Mrs. Mastin`s Website
... If there are more electrons than protons than the atom is negatively charged. If there are fewer electrons than protons than the atom is positively charged. If an atom has a charge (negative or positive) it is called an ion. Ions are electrically ...
... If there are more electrons than protons than the atom is negatively charged. If there are fewer electrons than protons than the atom is positively charged. If an atom has a charge (negative or positive) it is called an ion. Ions are electrically ...
Development of Atomic Theory
... neutrons Number of neutrons in an element can vary (called isotopes: atoms of the same element that have different mass numbers) This means the number of _protons_ is the same, and the number of _neutrons_ is different. ...
... neutrons Number of neutrons in an element can vary (called isotopes: atoms of the same element that have different mass numbers) This means the number of _protons_ is the same, and the number of _neutrons_ is different. ...
Atomic Masses
... Dalton’s atomic theory. Identify the parts of an atom, their location, charge, and relative mass. Determine the numbers of subatomic particles in an atom. ...
... Dalton’s atomic theory. Identify the parts of an atom, their location, charge, and relative mass. Determine the numbers of subatomic particles in an atom. ...
Lecture 4
... – The nucleus contains the protons and the neutrons – The electrons are constantly moving around in the electron cloud – In a neutral atom, the number of electrons is equal to the number of protons ...
... – The nucleus contains the protons and the neutrons – The electrons are constantly moving around in the electron cloud – In a neutral atom, the number of electrons is equal to the number of protons ...
I. Atom - New York Science Teacher
... 3. Before a second electron can be placed in any orbital, all the orbitals of that sublevel must contain at least one electron with same spin (*Hunds Rule). 4. No more than four orbitals (one s and three p orbitals) can be occupied in the outermost principle energy level. The next electron must ente ...
... 3. Before a second electron can be placed in any orbital, all the orbitals of that sublevel must contain at least one electron with same spin (*Hunds Rule). 4. No more than four orbitals (one s and three p orbitals) can be occupied in the outermost principle energy level. The next electron must ente ...
ATOMS:
... The number of neutrons in atoms of one element can vary. Isotopes : naturally occurring versions of an element that vary in the numbers of neutrons in their nucleus. Isotopes of an element will vary in mass because some have more or fewer neutrons. Isotopes of an element have the same chemical p ...
... The number of neutrons in atoms of one element can vary. Isotopes : naturally occurring versions of an element that vary in the numbers of neutrons in their nucleus. Isotopes of an element will vary in mass because some have more or fewer neutrons. Isotopes of an element have the same chemical p ...
5 - atomic structure ppt
... nucleus, composed of protons and neutrons, surrounded by electrons, orbiting in shells 1.10 recall the relative mass and relative charge of a proton, neutron and electron 1.11 understand the terms atomic number, mass number, isotopes and relative atomic mass (Ar) ...
... nucleus, composed of protons and neutrons, surrounded by electrons, orbiting in shells 1.10 recall the relative mass and relative charge of a proton, neutron and electron 1.11 understand the terms atomic number, mass number, isotopes and relative atomic mass (Ar) ...
Parts Of An Atom
... Substances that contain only one kind of atom are called elements. Some familiar elements are oxygen, gold, silver, and helium. An atom is the smallest part of an element that can be broken down and still have the characteristics of that element. All atoms are basically the same. All atoms of the sa ...
... Substances that contain only one kind of atom are called elements. Some familiar elements are oxygen, gold, silver, and helium. An atom is the smallest part of an element that can be broken down and still have the characteristics of that element. All atoms are basically the same. All atoms of the sa ...
Chapter 4 Section 4.3
... • The mass that is listed on the periodic table is an average atomic mass. • It is a weighted average of the atomic masses of naturally occurring isotopes. ...
... • The mass that is listed on the periodic table is an average atomic mass. • It is a weighted average of the atomic masses of naturally occurring isotopes. ...
Atomic structure
... The nucleus contains most of an atom's mass. It was discovered by Ernest Rutherford in ...
... The nucleus contains most of an atom's mass. It was discovered by Ernest Rutherford in ...
Final Preparation
... A) Isotopes of the same element differ only in the number of electrons they contain. B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons. C) Isotopes of the same element have the same mass. D) Isotopes of the same element ...
... A) Isotopes of the same element differ only in the number of electrons they contain. B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons. C) Isotopes of the same element have the same mass. D) Isotopes of the same element ...
Practice Problems for Chapters 5, 13, 14 - Parkway C-2
... Remembering the Gas Tube demonstration with the diffraction gradient glasses and the Movie on Light, explain what occurs when a gas tube filled with only one type of element emits light (atomic emission). Describe what changes occur as heat or electricity is added. Give details and use specific term ...
... Remembering the Gas Tube demonstration with the diffraction gradient glasses and the Movie on Light, explain what occurs when a gas tube filled with only one type of element emits light (atomic emission). Describe what changes occur as heat or electricity is added. Give details and use specific term ...
Oxidation numbers
... Using rule 4, the O.N. of the elements must add up to -1 Mn must have an O.N. of +7 in order to cancel out 4 x –2 = -8 of the O’s +7 -8 = -1 (the charge on the ion) The ion is the Manganate (VII) ion ...
... Using rule 4, the O.N. of the elements must add up to -1 Mn must have an O.N. of +7 in order to cancel out 4 x –2 = -8 of the O’s +7 -8 = -1 (the charge on the ion) The ion is the Manganate (VII) ion ...