Nuclear Chemistry - gcisd
... An inner shell electron is pulled into the nucleus where it combines with a proton to form a neutron; so atomic number decreases by 1, but atomic mass stays the same ...
... An inner shell electron is pulled into the nucleus where it combines with a proton to form a neutron; so atomic number decreases by 1, but atomic mass stays the same ...
Atoms, molecules and ions
... • Homogenous – uniform, constant composition. Air, salt water, koolaid ...
... • Homogenous – uniform, constant composition. Air, salt water, koolaid ...
AP Notes Chapter 2
... Isotopes are forms of an atom that differ by the number of neutrons Mass number is approximation of exact atomic mass of an isotope Atomic mass or atomic weight is the average mass of the isotopes of atoms Isotopic percent abundance or fractional abundance is a description of the proportion of an is ...
... Isotopes are forms of an atom that differ by the number of neutrons Mass number is approximation of exact atomic mass of an isotope Atomic mass or atomic weight is the average mass of the isotopes of atoms Isotopic percent abundance or fractional abundance is a description of the proportion of an is ...
Gizmos: Types of Reactions
... Introduction: Chemical equations show how compounds and elements react with one another. An element is a substance consisting of one kind of atom, such as aluminum (Al) or oxygen gas (O2). A compound is a substance made of more than one kind of atom, such as water (H2O) or table salt (NaCl). Questio ...
... Introduction: Chemical equations show how compounds and elements react with one another. An element is a substance consisting of one kind of atom, such as aluminum (Al) or oxygen gas (O2). A compound is a substance made of more than one kind of atom, such as water (H2O) or table salt (NaCl). Questio ...
Chapter 4 Review Worksheet. Name
... 1/12 the mass of a carbon-12 atom the number of protons in the nucleus of an atom of an element an arrangement of elements according to similarities in their properties a vertical column of elements in the periodic table a horizontal row of the periodic table stream of electrons produced at the nega ...
... 1/12 the mass of a carbon-12 atom the number of protons in the nucleus of an atom of an element an arrangement of elements according to similarities in their properties a vertical column of elements in the periodic table a horizontal row of the periodic table stream of electrons produced at the nega ...
AP Chapter 2 Outline 2014
... (1) Each element is made of extremely small particles (atoms). (2) All atoms of a given element are identical to one another in mass and other properties, but the atoms of one element are different from the atoms of other elements. (3) Atoms of an element are not changed into atoms of a different el ...
... (1) Each element is made of extremely small particles (atoms). (2) All atoms of a given element are identical to one another in mass and other properties, but the atoms of one element are different from the atoms of other elements. (3) Atoms of an element are not changed into atoms of a different el ...
Structures and Function Study Guide Questions
... 37. Saturated fats are when each carbon atom binds as many hydrogen atoms as possible. Unsaturated fats have one or more double bonds between carbon bonds 38. A hydrophilic molecule dissolves in water but not lipids 39. Proteins are structural materials, energy sources, and chemical messengers 40. E ...
... 37. Saturated fats are when each carbon atom binds as many hydrogen atoms as possible. Unsaturated fats have one or more double bonds between carbon bonds 38. A hydrophilic molecule dissolves in water but not lipids 39. Proteins are structural materials, energy sources, and chemical messengers 40. E ...
Begin Chemical Equations Practice
... • In a chemical reaction, the materials to the left of the arrow are the reactants. Reactants are consumed in the reaction. • The arrow is like an equal sign in math. It can be read “react to produce” or “produces” or “forms”. • The materials to the right of the arrow are the products. They form as ...
... • In a chemical reaction, the materials to the left of the arrow are the reactants. Reactants are consumed in the reaction. • The arrow is like an equal sign in math. It can be read “react to produce” or “produces” or “forms”. • The materials to the right of the arrow are the products. They form as ...
Ch. 4 Slides
... system) does each of the following elements belong? If the group has a name, indicate that as well. ...
... system) does each of the following elements belong? If the group has a name, indicate that as well. ...
Stoichiometry - Cloudfront.net
... only carbon, hydrogen, and oxygen, determine the empirical formula of the unknown compound. 7. A 105.5 mg sample of a white substance is suspected to be cocaine, C 17H21NO4. The substance formed 279.3 mg of CO2 and 66.46 mg H2O on combustion. The compound contains 4.680% N by mass. Is the white soli ...
... only carbon, hydrogen, and oxygen, determine the empirical formula of the unknown compound. 7. A 105.5 mg sample of a white substance is suspected to be cocaine, C 17H21NO4. The substance formed 279.3 mg of CO2 and 66.46 mg H2O on combustion. The compound contains 4.680% N by mass. Is the white soli ...
AP Chemistry
... 2.1.4.1 Each element is made of extremely small particles (atoms). 2.1.4.2 All atoms of a given element are identical to one another in mass and other properties, but the atoms of one element are different from the atoms of other elements. 2.1.4.3 Atoms of an element are not changed into atoms of a ...
... 2.1.4.1 Each element is made of extremely small particles (atoms). 2.1.4.2 All atoms of a given element are identical to one another in mass and other properties, but the atoms of one element are different from the atoms of other elements. 2.1.4.3 Atoms of an element are not changed into atoms of a ...
Chapter 5
... different numbers of neutrons - Because isotopes have different numbers of neutrons, they also have different mass numbers o Three known isotopes of hydrogen: - Hydrogen (hydrogen-1) has one proton and no neutrons - Deuterium (hydrogen-2) has one proton and one neutron - Tritium (hydrogen-3) has one ...
... different numbers of neutrons - Because isotopes have different numbers of neutrons, they also have different mass numbers o Three known isotopes of hydrogen: - Hydrogen (hydrogen-1) has one proton and no neutrons - Deuterium (hydrogen-2) has one proton and one neutron - Tritium (hydrogen-3) has one ...
Chapter 3 Atomic Structure
... All atoms are composed of tiny indivisible particles. Atoms of one element are identical and are different from atoms of a different element. Atoms of different elements can mix together or chemically combine in simple whole number ratios to form compounds. In chemical reactions atoms are separated, ...
... All atoms are composed of tiny indivisible particles. Atoms of one element are identical and are different from atoms of a different element. Atoms of different elements can mix together or chemically combine in simple whole number ratios to form compounds. In chemical reactions atoms are separated, ...
Chemistry of Life
... • Oxygen and Hydrogen are bonded together by ________ electrons, but the Oxygen atom _________the shared electrons closer to it, creating negative and positive sides of the water molecules. Water has a partial negative charge due to the extra unshared e- that Oxygen and a partial + charge near the h ...
... • Oxygen and Hydrogen are bonded together by ________ electrons, but the Oxygen atom _________the shared electrons closer to it, creating negative and positive sides of the water molecules. Water has a partial negative charge due to the extra unshared e- that Oxygen and a partial + charge near the h ...
Academic Chemistry
... 11. Atomic mass is a relative scale based on which of the following nuclides? A. carbon-12 B. oxygen-16 C. nitrogen-14 D. hydrogen-1 12. What is the mass number of an atom that has 8 protons, 9 neutrons, and 8 electrons? A. 8 B. 17 C. 16 D. 25 13. The Avogadro constant is ________ A. 2.998 X 108 B. ...
... 11. Atomic mass is a relative scale based on which of the following nuclides? A. carbon-12 B. oxygen-16 C. nitrogen-14 D. hydrogen-1 12. What is the mass number of an atom that has 8 protons, 9 neutrons, and 8 electrons? A. 8 B. 17 C. 16 D. 25 13. The Avogadro constant is ________ A. 2.998 X 108 B. ...
File
... deeper into material they hit. •Pass through paper and skin •Aluminum foil will stop a beta particle •Can damage human cells if released inside the body ...
... deeper into material they hit. •Pass through paper and skin •Aluminum foil will stop a beta particle •Can damage human cells if released inside the body ...
ExamView - Untitled.tst
... b. solubility in water d. color 6. Which of the following is an example of a physical change? a. dissolving salt in water c. burning wood into charcoal b. cooking an egg d. rusting iron 7. The change of a substance from a solid directly to a gas is called a. condensation. c. melting. b. evaporation. ...
... b. solubility in water d. color 6. Which of the following is an example of a physical change? a. dissolving salt in water c. burning wood into charcoal b. cooking an egg d. rusting iron 7. The change of a substance from a solid directly to a gas is called a. condensation. c. melting. b. evaporation. ...
Atomic Structure - Coronado High School
... together or can chemically combine with another in simple or whole number ratios to form compounds. Chemical reactions occur when atoms are separated, joined or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction. ...
... together or can chemically combine with another in simple or whole number ratios to form compounds. Chemical reactions occur when atoms are separated, joined or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction. ...
Chapter 3 Atoms and Elements
... Since atomic mass is equal to the sum of the number of protons and neutrons, how can you have a fractional number? How was an atomic mass value of 35.45 arrived at? Since in a “handful” of Cl there is a mixture of two isotopes in the abundances shown on the left, an average atomic mass has been defi ...
... Since atomic mass is equal to the sum of the number of protons and neutrons, how can you have a fractional number? How was an atomic mass value of 35.45 arrived at? Since in a “handful” of Cl there is a mixture of two isotopes in the abundances shown on the left, an average atomic mass has been defi ...
Nuclear Chemistry - Ector County ISD.
... Traditional chemical reactions occur as a result of the interaction between valence electrons around an atom's nucleus . In 1896, Henri Becquerel expanded the field of chemistry to include nuclear changes when he discovered that uranium emitted radiation. Soon after Becquerel's discovery, Marie Sklo ...
... Traditional chemical reactions occur as a result of the interaction between valence electrons around an atom's nucleus . In 1896, Henri Becquerel expanded the field of chemistry to include nuclear changes when he discovered that uranium emitted radiation. Soon after Becquerel's discovery, Marie Sklo ...
The Atom
... Elements are made of tiny particles called atoms All atoms of a given element are identical The atoms of a given element differ from those of other elements Atoms of one element can combine with those of other elements to form compounds, and a given compound always has the same relative numbers (rat ...
... Elements are made of tiny particles called atoms All atoms of a given element are identical The atoms of a given element differ from those of other elements Atoms of one element can combine with those of other elements to form compounds, and a given compound always has the same relative numbers (rat ...
Honors Chemistry
... Due to differences in mass (# of neutrons) the paths of the molecules curve based on their individual mass. Heavier particles curve less. This change in curvature causes the particles to land on different places on a detector. Draw picture of mass spectrometer below The mass spectrometer was invente ...
... Due to differences in mass (# of neutrons) the paths of the molecules curve based on their individual mass. Heavier particles curve less. This change in curvature causes the particles to land on different places on a detector. Draw picture of mass spectrometer below The mass spectrometer was invente ...
Basic Chemistry notes
... ______________________—two or more like atoms combined chemically ______________________—two or more different atoms combined chemically ...
... ______________________—two or more like atoms combined chemically ______________________—two or more different atoms combined chemically ...
Isotopic labeling
Isotopic labeling (or isotopic labelling) is a technique used to track the passage of an isotope, or an atom with a variation, through a reaction, metabolic pathway, or cell. The reactant is 'labeled' by replacing specific atoms by their isotope. The reactant is then allowed to undergo the reaction. The position of the isotopes in the products is measured to determine the sequence the isotopic atom followed in the reaction or the cell's metabolic pathway. The nuclides used in isotopic labeling may be stable nuclides or radionuclides. In the latter case, the labeling is called radiolabeling.In isotopic labeling, there are multiple ways to detect the presence of labeling isotopes; through their mass, vibrational mode, or radioactive decay. Mass spectrometry detects the difference in an isotope's mass, while infrared spectroscopy detects the difference in the isotope's vibrational modes. Nuclear magnetic resonance detects atoms with different gyromagnetic ratios. The radioactive decay can be detected through an ionization chamber or autoradiographs of gels.An example of the use of isotopic labeling is the study of phenol (C6H5OH) in water by replacing common hydrogen (protium) with deuterium (deuterium labeling). Upon adding phenol to deuterated water (water containing D2O in addition to the usual H2O), the substitution of deuterium for the hydrogen is observed in phenol's hydroxyl group (resulting in C6H5OD), indicating that phenol readily undergoes hydrogen-exchange reactions with water. Only the hydroxyl group was affected, indicating that the other 5 hydrogen atoms did not participate in these exchange reactions.