Pre-Knowledge: Chemistry and Physics Vocabulary Atomic Number
... The sum of the number of neutrons and protons in the nucleus of an atom. Nucleus The small “core” of the atom, where most of its mass and all of its positive charge is concentrated. Except for ordinary hydrogen (which has only a proton), atomic nuclei consist of protons and neutrons. For this reason ...
... The sum of the number of neutrons and protons in the nucleus of an atom. Nucleus The small “core” of the atom, where most of its mass and all of its positive charge is concentrated. Except for ordinary hydrogen (which has only a proton), atomic nuclei consist of protons and neutrons. For this reason ...
WORKSHEET 36: ATOMIC PROPERTIES
... 3. Using the metal magnesium as an example, write two separate equations to show the first and second ionization energy of magnesium. (Remember state symbols are important as they from part of the definition). (4) First Ionization ...
... 3. Using the metal magnesium as an example, write two separate equations to show the first and second ionization energy of magnesium. (Remember state symbols are important as they from part of the definition). (4) First Ionization ...
Final Preparation
... A) lowers the energy of the products B) changes the concentration of the substrate C) lowers the energy of the substrate D) decreases the activation energy for the reaction E) changes the possible product formed 59. Which of the following does not represent a conjugate acid-base pair? A) H3O+/H2O B) ...
... A) lowers the energy of the products B) changes the concentration of the substrate C) lowers the energy of the substrate D) decreases the activation energy for the reaction E) changes the possible product formed 59. Which of the following does not represent a conjugate acid-base pair? A) H3O+/H2O B) ...
Units 1-6
... I can describe and explain the trends across periods and down groups: atomic radius, ionization energy, and electronegativity. I know the family/group names (alkali metal, alkaline earth metal, halogen, noble gas, and others by top element in the group and as groups 1A-8A) I can describe and explain ...
... I can describe and explain the trends across periods and down groups: atomic radius, ionization energy, and electronegativity. I know the family/group names (alkali metal, alkaline earth metal, halogen, noble gas, and others by top element in the group and as groups 1A-8A) I can describe and explain ...
Atoms and Bonding
... • Atomic bonding determines many of the physical properties of a material • If two isolated atoms are brought closer together the net force varies with distance there is a mechanism-specific attractive force (FA) and a repulsive force (FB), which increases when the atoms are sufficiently close f ...
... • Atomic bonding determines many of the physical properties of a material • If two isolated atoms are brought closer together the net force varies with distance there is a mechanism-specific attractive force (FA) and a repulsive force (FB), which increases when the atoms are sufficiently close f ...
Document
... how many of a certain type of atom are in a molecule. The bigger number is called the coefficient and tells how many of a particular type of molecule there are. If there is a coefficient in front of the molecule and a subscript after an atom, multiply the coefficient and the subscript to get the num ...
... how many of a certain type of atom are in a molecule. The bigger number is called the coefficient and tells how many of a particular type of molecule there are. If there is a coefficient in front of the molecule and a subscript after an atom, multiply the coefficient and the subscript to get the num ...
Ionic Bonding
... The importance of noble gas structures At a simple level (like GCSE) a lot of importance is attached to the electronic structures of noble gases like neon or argon which have eight electrons in their outer energy levels (or two in the case of helium). These noble gas structures are thought of as bei ...
... The importance of noble gas structures At a simple level (like GCSE) a lot of importance is attached to the electronic structures of noble gases like neon or argon which have eight electrons in their outer energy levels (or two in the case of helium). These noble gas structures are thought of as bei ...
iClicker PARTICIPATION Question: Development of the Modern
... their world. Sami people, who live in the northern tips of Scandinavia and Russia, use at least 180 words to describe snow and ice (according to Ole Henrik Magga, a linguist of Norway) ...
... their world. Sami people, who live in the northern tips of Scandinavia and Russia, use at least 180 words to describe snow and ice (according to Ole Henrik Magga, a linguist of Norway) ...
6.5 Main Group
... This introduces E=O bonds, which due to their electron withdrawing effect increase the polarization of the E --O-H + bond system further → acidic reaction in water. ...
... This introduces E=O bonds, which due to their electron withdrawing effect increase the polarization of the E --O-H + bond system further → acidic reaction in water. ...
Ch. 3 - Chemical Reactions
... Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g) • How many? • Of what? • In what state? ...
... Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g) • How many? • Of what? • In what state? ...
Water Chemistry - Biology12-Lum
... hydrocarbons, which contain many C–H bonds. Water molecules are not attracted to such molecules and so have little tendency to surround them and carry them into solution. ...
... hydrocarbons, which contain many C–H bonds. Water molecules are not attracted to such molecules and so have little tendency to surround them and carry them into solution. ...
THE UNIVERSITY OF LETHBRIDGE DEPARTMENT OF CHEMISTRY
... Hydrogen bonds are the dominant IMF in the structure of ice; these must be partially broken to allow liquid water to form. Water is though to have a structure near the m.p. of “flickering clusters” of the IceI structure. Additional IMF that contribute to the structure are DP-DP and dispersion forces ...
... Hydrogen bonds are the dominant IMF in the structure of ice; these must be partially broken to allow liquid water to form. Water is though to have a structure near the m.p. of “flickering clusters” of the IceI structure. Additional IMF that contribute to the structure are DP-DP and dispersion forces ...
Chapters 1-4 Numbers and Measurements in Chemistry Units SI
... • Because carbon compounds can become quite large, organic compounds are described simply and unambiguously using line structures, where carbons and hydrogens are not explicitly shown. – Each corner or end of a line is a carbon. – Hydrogen y g atoms on carbon atoms are implied. p Carbon makes four b ...
... • Because carbon compounds can become quite large, organic compounds are described simply and unambiguously using line structures, where carbons and hydrogens are not explicitly shown. – Each corner or end of a line is a carbon. – Hydrogen y g atoms on carbon atoms are implied. p Carbon makes four b ...
SCH4C Exam Review Assignment Kathleen Fall 2014
... 4. Determine whether each of the following compounds is soluble in water: (aq) or (s) ? a) CoOH (cobalt hydroxide) _____________________ b) NaNO3 (sodium nitrate) ______________________ c) NaOH (sodium hydroxide) _____________________ d) AgI (silver iodide) ____________________________ 5. Predict th ...
... 4. Determine whether each of the following compounds is soluble in water: (aq) or (s) ? a) CoOH (cobalt hydroxide) _____________________ b) NaNO3 (sodium nitrate) ______________________ c) NaOH (sodium hydroxide) _____________________ d) AgI (silver iodide) ____________________________ 5. Predict th ...
High School Chemistry
... Atoms form bonds with other atoms by transferring or sharing electrons. The formation of compounds results in a great diversity of matter from a limited number of elements. Writing the chemical formula for a compound is one way to describe the compound. The electron configuration of an atom, particu ...
... Atoms form bonds with other atoms by transferring or sharing electrons. The formation of compounds results in a great diversity of matter from a limited number of elements. Writing the chemical formula for a compound is one way to describe the compound. The electron configuration of an atom, particu ...
AP Chemistry Summer Work Packet I have read and understand the i
... Probability and electron density Orbitals; wave functions knowing (n) in electron shell N & 1 values = sub shells 4. Electron Configuration ! Hund’s Rules Know how to indicate electron configuration of an atom Main Groups Valence electrons vs. core electrons Transitions lanthanide ac ...
... Probability and electron density Orbitals; wave functions knowing (n) in electron shell N & 1 values = sub shells 4. Electron Configuration ! Hund’s Rules Know how to indicate electron configuration of an atom Main Groups Valence electrons vs. core electrons Transitions lanthanide ac ...
Writing Chemical Equations KClO3 O2 (g) + KCl (s) Balancing
... chloride, liquid water and gaseous carbon dioxide. Example2: Oxygen gas can be made by heating potassium chlorate in the presence of the catalyst manganese(IV) oxide. Potassium chloride is left as a solid residue. The equation would look like: ...
... chloride, liquid water and gaseous carbon dioxide. Example2: Oxygen gas can be made by heating potassium chlorate in the presence of the catalyst manganese(IV) oxide. Potassium chloride is left as a solid residue. The equation would look like: ...
quantum-theory-of-the-atom2
... In the previous example, Be actually changes its bonding orbital type to the combination of the orbitals combined: sp The naming is based on the type of orbitals combined and how many “boxes” are used in the formation of the hybrid. ...
... In the previous example, Be actually changes its bonding orbital type to the combination of the orbitals combined: sp The naming is based on the type of orbitals combined and how many “boxes” are used in the formation of the hybrid. ...
Chemical bond
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are ""strong bonds"" such as covalent or ionic bonds and ""weak bonds"" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.In general, strong chemical bonding is associated with the sharing or transfer of electrons between the participating atoms. The atoms in molecules, crystals, metals and diatomic gases—indeed most of the physical environment around us—are held together by chemical bonds, which dictate the structure and the bulk properties of matter.All bonds can be explained by quantum theory, but, in practice, simplification rules allow chemists to predict the strength, directionality, and polarity of bonds. The octet rule and VSEPR theory are two examples. More sophisticated theories are valence bond theory which includes orbital hybridization and resonance, and the linear combination of atomic orbitals molecular orbital method which includes ligand field theory. Electrostatics are used to describe bond polarities and the effects they have on chemical substances.