FALL Final Review KEY
... 31. Elements in the same GROUP (vertical column) have the same number of electrons in the outer energy level (valence electron) 32. (A) 1s2 2s2 2p6 Noble gas is the most stable and will have a general formula of ns2 np6 (where n=1, 2,3,4…7) 33. Check in your notes for the Electronegativity Trend Dia ...
... 31. Elements in the same GROUP (vertical column) have the same number of electrons in the outer energy level (valence electron) 32. (A) 1s2 2s2 2p6 Noble gas is the most stable and will have a general formula of ns2 np6 (where n=1, 2,3,4…7) 33. Check in your notes for the Electronegativity Trend Dia ...
A Thumbnail Review of Regents Chemistry
... Electronegativity = attraction for a pair of bonded electrons Ionization Energy = energy needed to remove a specific electron Metals: to the left of the staircase, including Al and Po. All solid except for Hg Metalloids: on the staircase: B, Si, Ge, As, Sb, Te, At: fair conductors but brittle Non-Me ...
... Electronegativity = attraction for a pair of bonded electrons Ionization Energy = energy needed to remove a specific electron Metals: to the left of the staircase, including Al and Po. All solid except for Hg Metalloids: on the staircase: B, Si, Ge, As, Sb, Te, At: fair conductors but brittle Non-Me ...
200 ways to pass the regents
... 88. Energy is released when a chemical bond forms. The more energy that is released, the more stable the bond is. 89. The last digit of an element’s group number is equal to its number of valence electrons. 90. Draw one dot for each valence electron when drawing an element’s or ion’s Lewis diagram. ...
... 88. Energy is released when a chemical bond forms. The more energy that is released, the more stable the bond is. 89. The last digit of an element’s group number is equal to its number of valence electrons. 90. Draw one dot for each valence electron when drawing an element’s or ion’s Lewis diagram. ...
Class16review
... Our Model of the Atom • If the atom is in the “ground state” of lowest energy, electrons fill the states in the lowest available energy levels. The first shell has two possible states, and the second shell has eight possible states. Higher shells have more states, but we’ll represent them with the ...
... Our Model of the Atom • If the atom is in the “ground state” of lowest energy, electrons fill the states in the lowest available energy levels. The first shell has two possible states, and the second shell has eight possible states. Higher shells have more states, but we’ll represent them with the ...
chemia simr01 en - Leszek Niedzicki
... accumulated in a small volume (not distributed on any neutrons); • In molecules in which hydrogen gives his electron away to atoms with strong affinity towards electrons (e.g. oxygen, nitrogen, fluorine) its electron (although formally shared) is ‘closer’ to the other atom; • Hydrogen is ‘looking’ f ...
... accumulated in a small volume (not distributed on any neutrons); • In molecules in which hydrogen gives his electron away to atoms with strong affinity towards electrons (e.g. oxygen, nitrogen, fluorine) its electron (although formally shared) is ‘closer’ to the other atom; • Hydrogen is ‘looking’ f ...
The format of this test is MULTIPLE CHOICE
... 1. __Condensation___ occurs when a gas becomes a liquid. 2. All matter is made up of tiny particles called __atoms___. 3. When a solid becomes a liquid, _melting_____ occurs. 4. An _element_____ is made up of only one type of atom. 5. __freezing___ changes a liquid into a solid. 6. A mixture is made ...
... 1. __Condensation___ occurs when a gas becomes a liquid. 2. All matter is made up of tiny particles called __atoms___. 3. When a solid becomes a liquid, _melting_____ occurs. 4. An _element_____ is made up of only one type of atom. 5. __freezing___ changes a liquid into a solid. 6. A mixture is made ...
Chemistry Final Exam Review 2006-2007
... a) Which direction does the reaction shift if temperature increases? b) Which direction does the reaction shift if hydrogen gas is increased? c) Which direction does the reaction shift if HCl is removed? d) Which direction does the reaction shift if the volume is decreased? e) Which direction doe th ...
... a) Which direction does the reaction shift if temperature increases? b) Which direction does the reaction shift if hydrogen gas is increased? c) Which direction does the reaction shift if HCl is removed? d) Which direction does the reaction shift if the volume is decreased? e) Which direction doe th ...
72KB
... structure of the ionic solid and (for melting point) the forces of attraction between the ions in NaCl(s) and (dissolving) the forces of attraction between ions and the polar water molecules. ...
... structure of the ionic solid and (for melting point) the forces of attraction between the ions in NaCl(s) and (dissolving) the forces of attraction between ions and the polar water molecules. ...
ch6 - ChemistryVCE
... Use the ionic bonding model to explain the following properties of ionic compounds: a They generally have high melting temperatures. b They are hard and brittle. c They do not conduct electricity in the solid state but will conduct when molten or dissolved in water. A21. The information in Table 6.1 ...
... Use the ionic bonding model to explain the following properties of ionic compounds: a They generally have high melting temperatures. b They are hard and brittle. c They do not conduct electricity in the solid state but will conduct when molten or dissolved in water. A21. The information in Table 6.1 ...
Name: Midterm Review (Part II) Fill in the blanks (Chapter 6.1 – 6.3
... Describe the trends in the atomic size of elements within groups? (Increase/Decrease down a group?) Describe the trends in the atomic size of elements across periods in the periodic table? (Increase/Decrease across the period?) Which element has the largest radius? Lithium, Sodium, Rubidium, Cesium ...
... Describe the trends in the atomic size of elements within groups? (Increase/Decrease down a group?) Describe the trends in the atomic size of elements across periods in the periodic table? (Increase/Decrease across the period?) Which element has the largest radius? Lithium, Sodium, Rubidium, Cesium ...
2. Chemistry of Living Things Outline
... Negatively charged particles, called ______________ (-1) revolve around the nucleus at different distances from the nucleus. The electrons move in paths called shells or ____________________. Atoms have the ________ number of electrons and protons. Therefore, they are electrically ____________ (have ...
... Negatively charged particles, called ______________ (-1) revolve around the nucleus at different distances from the nucleus. The electrons move in paths called shells or ____________________. Atoms have the ________ number of electrons and protons. Therefore, they are electrically ____________ (have ...
Document
... An unknown white solid is discovered on the lab counter in room 2101. Miss Allen wants to know if it is ionic or covalent. Describe how you could use its properties to determine if it is ionic or covalent. Be sure to use at least 3 specific examples of properties (3 marks) ...
... An unknown white solid is discovered on the lab counter in room 2101. Miss Allen wants to know if it is ionic or covalent. Describe how you could use its properties to determine if it is ionic or covalent. Be sure to use at least 3 specific examples of properties (3 marks) ...
Chemistry of Living Things Outline
... Negatively charged particles, called ______________ (-1) revolve around the nucleus at different distances from the nucleus. The electrons move in paths called shells or ____________________. Atoms have the ________ number of electrons and protons. Therefore, they are electrically ____________ ...
... Negatively charged particles, called ______________ (-1) revolve around the nucleus at different distances from the nucleus. The electrons move in paths called shells or ____________________. Atoms have the ________ number of electrons and protons. Therefore, they are electrically ____________ ...
Study Guide for Exam 2_Sp12
... Periodic trends regarding atomic and ionic radii. What is meant by valence electrons? What is ionization energy? What is the octet rule? What are ions? How do they relate to the octet rule? How is charge balance related to writing formulas of ionic compounds? Write dot formulas for atoms, and show h ...
... Periodic trends regarding atomic and ionic radii. What is meant by valence electrons? What is ionization energy? What is the octet rule? What are ions? How do they relate to the octet rule? How is charge balance related to writing formulas of ionic compounds? Write dot formulas for atoms, and show h ...
Matter and Atoms
... • Relate the nature of chemical bonds that hold compounds together to the physical structures of compounds •Distinguish between different types of mixtures and solutions ...
... • Relate the nature of chemical bonds that hold compounds together to the physical structures of compounds •Distinguish between different types of mixtures and solutions ...
Semester Exam Practice Questions
... The modern periodic law states that the properties of the elements are a periodic function of their __________. a. atomic radius c. atomic mass b. atomic number d. atomic charge In the modern periodic table, the elements within a column have __________. a. similar electron configurations c. the same ...
... The modern periodic law states that the properties of the elements are a periodic function of their __________. a. atomic radius c. atomic mass b. atomic number d. atomic charge In the modern periodic table, the elements within a column have __________. a. similar electron configurations c. the same ...
atoms
... X-ray is form of high energy electromagnetic radiation Radioactivity is the spontaneous emission of radiation from a substance Two types of radiation form from radioactive material were identified by Ernest Rutherford Alpha (a): a-particles carry two fundamental units of positive charge and t ...
... X-ray is form of high energy electromagnetic radiation Radioactivity is the spontaneous emission of radiation from a substance Two types of radiation form from radioactive material were identified by Ernest Rutherford Alpha (a): a-particles carry two fundamental units of positive charge and t ...
atoms
... An object having equal number of (+) or (-) charged particles carries no net charge and is electrically neutral If the number of (+) charge exceed the number of (-) charge , the object has a net positive charge If the number of (-) charge exceed the number of (+) charge , the object has a net neg ...
... An object having equal number of (+) or (-) charged particles carries no net charge and is electrically neutral If the number of (+) charge exceed the number of (-) charge , the object has a net positive charge If the number of (-) charge exceed the number of (+) charge , the object has a net neg ...
Class 1
... For a limited number of substances, radical anions are produced by electron absorption, especially if the electron is less energetic (say, 10 eV) and the molecule contains groups that stabilize a negative charge: ...
... For a limited number of substances, radical anions are produced by electron absorption, especially if the electron is less energetic (say, 10 eV) and the molecule contains groups that stabilize a negative charge: ...
IntroRedoxDCIAns
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
Introduction to Oxidation Reduction
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
... b. Identify two characteristics common to these equations. The first three reactions show an element, in this case oxygen, converted to the combined form of oxygen in a compound. An element was converted to a compound in the reactions. In the fourth reaction, a compound decomposed into its elements. ...
Worksheet 4 - Periodic Trends A number of physical and chemical
... However, not all electrons in an atom experience the same nuclear charge. Those closest to the nucleus experience the full nuclear charge and are held most strongly. As the number of electrons between the nucleus and the valence electrons increases, the apparent nuclear charge decreases, due to the ...
... However, not all electrons in an atom experience the same nuclear charge. Those closest to the nucleus experience the full nuclear charge and are held most strongly. As the number of electrons between the nucleus and the valence electrons increases, the apparent nuclear charge decreases, due to the ...