Atomic Theory Practice Test
... ____ 18. The electrons involved in the formation of a chemical bond are called a. dipoles. c. Lewis electrons. b. s electrons. d. valence electrons. ____ 19. In a chemical bond, the link between atoms results from the attraction between electrons and a. Lewis structures. c. van der Waals forces. b. ...
... ____ 18. The electrons involved in the formation of a chemical bond are called a. dipoles. c. Lewis electrons. b. s electrons. d. valence electrons. ____ 19. In a chemical bond, the link between atoms results from the attraction between electrons and a. Lewis structures. c. van der Waals forces. b. ...
Review for Midyear - 1 KEY - Ms. Robbins` PNHS Science Classes
... ionization energy and relative sizes of atoms and ions, based on the patterns of electrons in the outermost energy level of each element. Use the patterns of valence electron configurations, core charge, and Coulomb’s law to explain and predict general trends in ionization energies, relative sizes o ...
... ionization energy and relative sizes of atoms and ions, based on the patterns of electrons in the outermost energy level of each element. Use the patterns of valence electron configurations, core charge, and Coulomb’s law to explain and predict general trends in ionization energies, relative sizes o ...
General Chemistry - Review for final exam: (Make sure you bring
... 39. Write the electron configuration for the following: a. O b. N3c. Sr d. Mg2+ 40. Define the following trends: a. Atomic radius b. Ion radius c. Electronegativity d. Ionization energy e. 2nd ionization energy 41. What are cations and anions? Which type of elements form each? 42. Write the ions for ...
... 39. Write the electron configuration for the following: a. O b. N3c. Sr d. Mg2+ 40. Define the following trends: a. Atomic radius b. Ion radius c. Electronegativity d. Ionization energy e. 2nd ionization energy 41. What are cations and anions? Which type of elements form each? 42. Write the ions for ...
Unit 2
... 60. A chemical bond resulting from the sharing of electrons between two atoms is called a(n) _____ A. Lewis structure. B. ionic bond. C. orbital bond. D. covalent bond. 61. The electrons available to be lost, gained, or shared in the formation of chemical compounds are referred to as _ A. ions. B. e ...
... 60. A chemical bond resulting from the sharing of electrons between two atoms is called a(n) _____ A. Lewis structure. B. ionic bond. C. orbital bond. D. covalent bond. 61. The electrons available to be lost, gained, or shared in the formation of chemical compounds are referred to as _ A. ions. B. e ...
Chemistry Fall Final Review 2012-2013 Alchemy Unit
... Alchemy Unit 1. Using the periodic table, where are the metals and nonmetals? What is hydrogen? Metals are in the left side of the periodic table. Nonmetals are on the right side of the periodic table. Hydrogen is an nonmetal. 2. Where are the alkali, alkaline earth, transition metals, halogens, and ...
... Alchemy Unit 1. Using the periodic table, where are the metals and nonmetals? What is hydrogen? Metals are in the left side of the periodic table. Nonmetals are on the right side of the periodic table. Hydrogen is an nonmetal. 2. Where are the alkali, alkaline earth, transition metals, halogens, and ...
Bonding and Nomenclature
... • Step #4: If there are no electrons left, move electrons from a different atom to form another bond…double • Side note: When more than one Lewis structure can be drawn, the molecule or ion is said to have resonance. ...
... • Step #4: If there are no electrons left, move electrons from a different atom to form another bond…double • Side note: When more than one Lewis structure can be drawn, the molecule or ion is said to have resonance. ...
Chemistry of life
... • Many of our everyday experiences depend upon chemistry. – For example: Making kool aid or sweet tea. ...
... • Many of our everyday experiences depend upon chemistry. – For example: Making kool aid or sweet tea. ...
Matter Unit - OG
... 1.) Are made up of only one type of atom. 2) Cannot be broken down into any simpler substances by normal physical or chemical means. 3) Periodic Table of Elements *Familiarize yourself w/ it *Know what those numbers mean! ...
... 1.) Are made up of only one type of atom. 2) Cannot be broken down into any simpler substances by normal physical or chemical means. 3) Periodic Table of Elements *Familiarize yourself w/ it *Know what those numbers mean! ...
File
... valence shell) usually determine how an atom will react Atoms are stable when their outer energy level is full Atoms can gain or lose electrons to ...
... valence shell) usually determine how an atom will react Atoms are stable when their outer energy level is full Atoms can gain or lose electrons to ...
Valence electrons and Lewis Dot Structures
... Means that one or more electrons are ____________ from the metal to the nonmetal (no longer neutral) these are now ions ...
... Means that one or more electrons are ____________ from the metal to the nonmetal (no longer neutral) these are now ions ...
ExamView - test.practice.questions.tst
... d. 542 g ____ 26. 4.4 - WWBAT convert between moles & grams How many moles of carbon-12 are contained in exactly 6 grams of carbon-12? a. 0.5 mole c. moles b. 2.0 moles d. moles ____ 27. 5.5 WWBAT describe what happens when an ionic bond is formed An atom of argon rarely bonds to an atom of another ...
... d. 542 g ____ 26. 4.4 - WWBAT convert between moles & grams How many moles of carbon-12 are contained in exactly 6 grams of carbon-12? a. 0.5 mole c. moles b. 2.0 moles d. moles ____ 27. 5.5 WWBAT describe what happens when an ionic bond is formed An atom of argon rarely bonds to an atom of another ...
Midterm Review
... What is the density of a liquid that has a mass of 50. g and a volume of 300. mL? ...
... What is the density of a liquid that has a mass of 50. g and a volume of 300. mL? ...
File
... – Names for covalent compounds uses Greek prefixes to indicate numbers of atoms of each element • The first element in the formula is named first with a prefix indicating the number of atoms if the number is greater than one. • The stem name of the second element in the formula is named next, with a ...
... – Names for covalent compounds uses Greek prefixes to indicate numbers of atoms of each element • The first element in the formula is named first with a prefix indicating the number of atoms if the number is greater than one. • The stem name of the second element in the formula is named next, with a ...
2 - My George School
... 4. Atoms of one element can combine with _______________ to form __________. A given compound always has the same _______________________________ ...
... 4. Atoms of one element can combine with _______________ to form __________. A given compound always has the same _______________________________ ...
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 ...
Chemistry Unit Test Study Guide (2012-2013)
... Elements are arranged by increasing ____________________. The atomic mass of an element is determined by _______________________________________. The atomic number of an element represents ________________________________________. Metals are found on the left / right side of the staircase on ...
... Elements are arranged by increasing ____________________. The atomic mass of an element is determined by _______________________________________. The atomic number of an element represents ________________________________________. Metals are found on the left / right side of the staircase on ...
Study Guide 1st Semester
... have to do with atomic emission spectra? 40. What are the three forms of radioactive decay? 41. What are the decay equations for the following processes? a) Alpha decay of Bismuth-214 b) Alpha decay of Dysprosium-164 c) Beta decay of Seaborgium-270 d) Beta decay of Radium-227 42. What is fission? Wh ...
... have to do with atomic emission spectra? 40. What are the three forms of radioactive decay? 41. What are the decay equations for the following processes? a) Alpha decay of Bismuth-214 b) Alpha decay of Dysprosium-164 c) Beta decay of Seaborgium-270 d) Beta decay of Radium-227 42. What is fission? Wh ...
Section 1 Review
... 5. Infer Sodium and potassium are in the same group on the periodic table. Name ...
... 5. Infer Sodium and potassium are in the same group on the periodic table. Name ...
File - docstover.org
... Using the periodic table, answer the following questions: 1. Which element stands alone in its family? ______________ 2. Which element has a larger atomic radius A or C? _____________ 3. Which element has a larger atomic radius C or D? _____________ 4. Which element has a higher electronegativity? A ...
... Using the periodic table, answer the following questions: 1. Which element stands alone in its family? ______________ 2. Which element has a larger atomic radius A or C? _____________ 3. Which element has a larger atomic radius C or D? _____________ 4. Which element has a higher electronegativity? A ...
First 9 weeks Study Guide 8th Grade
... A chemical equation is balanced when the reactants and products have the same number of each atom on each side in a chemical equation No new atoms can appear on the product side and no atoms can be lost. The Law of Conservation of Mass means we can rearrange the atoms like stacks of coins, but th ...
... A chemical equation is balanced when the reactants and products have the same number of each atom on each side in a chemical equation No new atoms can appear on the product side and no atoms can be lost. The Law of Conservation of Mass means we can rearrange the atoms like stacks of coins, but th ...
A`r ji r/ Ii
... a. the total number of protons and neulrons in the nucleus of an atom b. the weighted average mass of the atoms in a naturally occurring sample of an element c. 1/12 the mass of a carboni2 atom d. the number of protons in the nucleus of an ...
... a. the total number of protons and neulrons in the nucleus of an atom b. the weighted average mass of the atoms in a naturally occurring sample of an element c. 1/12 the mass of a carboni2 atom d. the number of protons in the nucleus of an ...
Chem Bonding Notes
... The results of these tests suggest that (1) both solids contain only ionic bonds (2) both solids contain only covalent bonds (3) solid A contains only covalent bonds and solid B contains only ionic bonds (4) solid^4 contains only ionic bonds and solid B contains only covalent bonds 33. In the space ...
... The results of these tests suggest that (1) both solids contain only ionic bonds (2) both solids contain only covalent bonds (3) solid A contains only covalent bonds and solid B contains only ionic bonds (4) solid^4 contains only ionic bonds and solid B contains only covalent bonds 33. In the space ...
Electronegativity
Electronegativity, symbol χ, is a chemical property that describes the tendency of an atom or a functional group to attract electrons (or electron density) towards itself. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it. The term ""electronegativity"" was introduced by Jöns Jacob Berzelius in 1811,though the concept was known even before that and was studied by many chemists including Avogadro.In spite of its long history, an accurate scale of electronegativity had to wait till 1932, when Linus Pauling proposed an electronegativity scale, which depends on bond energies, as a development of valence bond theory. It has been shown to correlate with a number of other chemical properties. Electronegativity cannot be directly measured and must be calculated from other atomic or molecular properties. Several methods of calculation have been proposed, and although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements. The most commonly used method of calculation is that originally proposed by Linus Pauling. This gives a dimensionless quantity, commonly referred to as the Pauling scale, on a relative scale running from around 0.7 to 3.98 (hydrogen = 2.20). When other methods of calculation are used, it is conventional (although not obligatory) to quote the results on a scale that covers the same range of numerical values: this is known as an electronegativity in Pauling units. As it is usually calculated, electronegativity is not a property of an atom alone, but rather a property of an atom in a molecule. Properties of a free atom include ionization energy and electron affinity. It is to be expected that the electronegativity of an element will vary with its chemical environment, but it is usually considered to be a transferable property, that is to say that similar values will be valid in a variety of situations.On the most basic level, electronegativity is determined by factors like the nuclear charge (the more protons an atom has, the more ""pull"" it will have on electrons) and the number/location of other electrons present in the atomic shells (the more electrons an atom has, the farther from the nucleus the valence electrons will be, and as a result the less positive charge they will experience—both because of their increased distance from the nucleus, and because the other electrons in the lower energy core orbitals will act to shield the valence electrons from the positively charged nucleus).The opposite of electronegativity is electropositivity: a measure of an element's ability to donate electrons.Caesium is the least electronegative element in the periodic table (=0.79), while fluorine is most electronegative (=3.98). (Francium and caesium were originally assigned both assigned 0.7; caesium's value was later refined to 0.79, but no experimental data allows a similar refinement for francium. However, francium's ionization energy is known to be slightly higher than caesium's, in accordance with the relativistic stabilization of the 7s orbital, and this in turn implies that caesium is in fact more electronegative than francium.)