01 Intro Chemistry
... Elements & their valence shells Moving from left to right, each element has a sequential addition of electrons (and protons) ...
... Elements & their valence shells Moving from left to right, each element has a sequential addition of electrons (and protons) ...
02Ch02chemistry2005
... Elements & their valence shells Moving from left to right, each element has a sequential addition of electrons (and protons) ...
... Elements & their valence shells Moving from left to right, each element has a sequential addition of electrons (and protons) ...
CHM 130 Final Exam Review Chapter 1 Scientific method Theory
... Chemical vs physical properties Chemical vs physical changes Conservation of mass and energy Chapter 5 Models of the atom Atomic notation Isotopes Radiant energy spectrum Wavelength, frequency, energy Levels, sublevels, orbitals Electron configuration Chapter 6 Group names Atomic size trend Metallic ...
... Chemical vs physical properties Chemical vs physical changes Conservation of mass and energy Chapter 5 Models of the atom Atomic notation Isotopes Radiant energy spectrum Wavelength, frequency, energy Levels, sublevels, orbitals Electron configuration Chapter 6 Group names Atomic size trend Metallic ...
Chapter 2 Chemistry
... All atoms of an element have same chemical properties all behave the same properties don’t change ...
... All atoms of an element have same chemical properties all behave the same properties don’t change ...
Chem Review
... 8. Which of the following is not true about electrons? a. They take part in bonding b. They like to pair up c. They have equal attraction to all elements d. They fill the orbitals in a specific order e. They can be transferred or shared 9. The order electrons fill orbitals is: a. 1s 2s 3s 3g 4s 5f 6 ...
... 8. Which of the following is not true about electrons? a. They take part in bonding b. They like to pair up c. They have equal attraction to all elements d. They fill the orbitals in a specific order e. They can be transferred or shared 9. The order electrons fill orbitals is: a. 1s 2s 3s 3g 4s 5f 6 ...
Reaction Predictions
... passage of current under sufficient external electrical potential. The devices in which electrolysis reactions occur are called electrolytic cells. In theory, E° values (Standard Reduction Potentials) can be used to predict which element will plate out at a particular electrode when various solution ...
... passage of current under sufficient external electrical potential. The devices in which electrolysis reactions occur are called electrolytic cells. In theory, E° values (Standard Reduction Potentials) can be used to predict which element will plate out at a particular electrode when various solution ...
Atomic Theory - chemmybear.com
... Account for each of the following in terms of principles of atom structure, including the number, properties, and arrangements of subatomic particles. (a) The second ionization energy of sodium is about three times greater than the second ionization energy of magnesium. (b) The difference between th ...
... Account for each of the following in terms of principles of atom structure, including the number, properties, and arrangements of subatomic particles. (a) The second ionization energy of sodium is about three times greater than the second ionization energy of magnesium. (b) The difference between th ...
Exam 2 Form N - TAMU Chemistry
... b) The number of electrons ejected from a metal surface irradiated with visible light does not depend on the color of the light as long as the light is above a certain, minimum energy . c) Electrons in atoms are found in s, p, d, or f orbitals. d) After an electron (in an atom) is excited to a highe ...
... b) The number of electrons ejected from a metal surface irradiated with visible light does not depend on the color of the light as long as the light is above a certain, minimum energy . c) Electrons in atoms are found in s, p, d, or f orbitals. d) After an electron (in an atom) is excited to a highe ...
Chapter 9 Notes - UIC Department of Chemistry
... Electron domains: 1) each lone pair is a domain 2) each bond is a domain; a single bond = 1 domain; a double bond = 1 domain; a triple bond = 1 domain Main idea: Electron domains repel one another; the lowest energy (and therefore the most stable) electron arrangement in a molecule results when the ...
... Electron domains: 1) each lone pair is a domain 2) each bond is a domain; a single bond = 1 domain; a double bond = 1 domain; a triple bond = 1 domain Main idea: Electron domains repel one another; the lowest energy (and therefore the most stable) electron arrangement in a molecule results when the ...
Chem 2 AP Ch 7 MC Review
... C) Yes, fluorescent materials emit a broad spectrum of light. D) Yes, after storing enough visible light energy, the fluorescent material can emit ultraviolet light. ...
... C) Yes, fluorescent materials emit a broad spectrum of light. D) Yes, after storing enough visible light energy, the fluorescent material can emit ultraviolet light. ...
Acid Spill - Rosshall Academy
... C. An acid that has been neutralised by an alkali D. An acid with the hydrogen ions replaced by ammonium ions 17 The salts formed by nitric acid are called A. chlorides B. ethanoates C. nitrates D. sulphates 18 In the reaction between nitric acid and zinc oxide, one of the products is zinc nitrate, ...
... C. An acid that has been neutralised by an alkali D. An acid with the hydrogen ions replaced by ammonium ions 17 The salts formed by nitric acid are called A. chlorides B. ethanoates C. nitrates D. sulphates 18 In the reaction between nitric acid and zinc oxide, one of the products is zinc nitrate, ...
Elements, mixtures and compounds lecture
... A. exists as only one type of atom: it is, therefore a pure substance (This does not often occur in nature); gold necklace? Oxygen is the most common pure element on Earth (occurs as a dioxide: O2 , what does “di” mean?) B. cannot be broken down by chemical reactions: burning/acids/eating (but nucle ...
... A. exists as only one type of atom: it is, therefore a pure substance (This does not often occur in nature); gold necklace? Oxygen is the most common pure element on Earth (occurs as a dioxide: O2 , what does “di” mean?) B. cannot be broken down by chemical reactions: burning/acids/eating (but nucle ...
Atomic Structure Electrons in Atoms
... • When an atom gains energy (through heating for example) it is in an excited state – in an excited state the electron absorbs the energy & jumps to higher energy level when it jumps back down to its ground state it releases excess energy in the form of light • Even though hydrogen contains only one ...
... • When an atom gains energy (through heating for example) it is in an excited state – in an excited state the electron absorbs the energy & jumps to higher energy level when it jumps back down to its ground state it releases excess energy in the form of light • Even though hydrogen contains only one ...
Final Review Answers
... 2) Differentiate between ionic, covalent, and metallic bonding in terms of electron location and types of atoms combined. Ionic - M/NM, e- donated; Covalent - NM, e- shared; Metallic - M, valence e- move freely 3) How many valence electrons do each of the following atoms have? a) sodium 1 Na b) argo ...
... 2) Differentiate between ionic, covalent, and metallic bonding in terms of electron location and types of atoms combined. Ionic - M/NM, e- donated; Covalent - NM, e- shared; Metallic - M, valence e- move freely 3) How many valence electrons do each of the following atoms have? a) sodium 1 Na b) argo ...
Name________________________ Midterm Review Date
... 17. Which conclusion is based on the “gold foil experiment” and the resulting model of the atom? A) An atom is mainly empty space, and the nucleus has a negative charge. B) An atom has hardly any empty space, and the nucleus has a negative charge. C) An atom is mainly empty space, and the nucleus ha ...
... 17. Which conclusion is based on the “gold foil experiment” and the resulting model of the atom? A) An atom is mainly empty space, and the nucleus has a negative charge. B) An atom has hardly any empty space, and the nucleus has a negative charge. C) An atom is mainly empty space, and the nucleus ha ...
Balancing Equations
... the formulas of the reactants (on the left) are connected by an arrow with the formulas for the products (on the right). • Example: Reactants Products ...
... the formulas of the reactants (on the left) are connected by an arrow with the formulas for the products (on the right). • Example: Reactants Products ...
Practice problems for chapter 1, 2 and 3 1) A small amount of salt
... C) +3 D) -5 E) -6 30) Horizontal rows of the periodic table are known as __________. A) periods B) groups C) metalloids D) metals E) nonmetals 31) Elements in Group 7A are known as the __________. A) chalcogens B) alkali metals C) alkaline earth metals D) halogens E) noble gases 32) When a metal and ...
... C) +3 D) -5 E) -6 30) Horizontal rows of the periodic table are known as __________. A) periods B) groups C) metalloids D) metals E) nonmetals 31) Elements in Group 7A are known as the __________. A) chalcogens B) alkali metals C) alkaline earth metals D) halogens E) noble gases 32) When a metal and ...
Chapter 4
... BaCI2 (aq) + Na2SO4 (aq) Ba2+(aq) + 2Cl-(aq) + 2Na+(aq)+ SO4 2-(aq) 2. Match cation from one salt with the anion from the other salt” Ba2+(aq) + Cl-(aq) + Na+(aq)+ SO4 2-(aq) NaCl+ BaSO4 Note: Always keep the metal on the left in all salts! 3. Balance charges in salts and put in coefficients Ba2+( ...
... BaCI2 (aq) + Na2SO4 (aq) Ba2+(aq) + 2Cl-(aq) + 2Na+(aq)+ SO4 2-(aq) 2. Match cation from one salt with the anion from the other salt” Ba2+(aq) + Cl-(aq) + Na+(aq)+ SO4 2-(aq) NaCl+ BaSO4 Note: Always keep the metal on the left in all salts! 3. Balance charges in salts and put in coefficients Ba2+( ...
Name
... 2. What are the elements in the chemical formula of caffeine C8H10N4O2? _______________________________________________________________________________________ 3. How many atoms are in sulfuric acid H2SO4? How many atoms of Sulfur are in the formula? _________________________________________________ ...
... 2. What are the elements in the chemical formula of caffeine C8H10N4O2? _______________________________________________________________________________________ 3. How many atoms are in sulfuric acid H2SO4? How many atoms of Sulfur are in the formula? _________________________________________________ ...
Packet
... 102. What is the minimum amount of uranium called? 103. What is the spontaneous emission of nuclear radiation? 104. Where are protons located? 105. What is the charge of a beta particle? 106. What is a positively charged electron? 107. The measure of which a radioactive substance loses half of its r ...
... 102. What is the minimum amount of uranium called? 103. What is the spontaneous emission of nuclear radiation? 104. Where are protons located? 105. What is the charge of a beta particle? 106. What is a positively charged electron? 107. The measure of which a radioactive substance loses half of its r ...
1 –Electrostatics
... charge q0 at any point r is the (vector!) sum of all Coulomb forces acting between q0 and q1, q0 and q2, etc. This force is evidently proportional to q0. If we divide this force by q0 we obtain the electric field E(r) = F/q0 that characterizes the distribution of charges in space and is independent ...
... charge q0 at any point r is the (vector!) sum of all Coulomb forces acting between q0 and q1, q0 and q2, etc. This force is evidently proportional to q0. If we divide this force by q0 we obtain the electric field E(r) = F/q0 that characterizes the distribution of charges in space and is independent ...