Vocabulary Matching - Part A Vocabulary Matching - Part B Definitions - Part A Terms- Part B Definitions - Part B Terms- Part A Period A. A column on the Periodic Table (goes up and down) A. Forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei Fission B. Group 17, The most reactive group of nonmetals. Fusion Group B. The process in which an unstable nucleus changes and gives off particles and energy C. Group 18, nonmetals that do not react. Radioactive Decay Net Positive Charge C. The process in which an electron or positron is released from a nucleus D. This group of elements are dull (opposite of shiny), liquid or gas at room temperature, and bad conductors. The element families that belong in this group include Halogens and Noble Gases. Half-Life Halogens D. The process in which an atomic nucleus emits a helium nucleus and the atomic mass decreases Isotope Noble Gases E. A row on the Periodic Table (goes left to right) Alpha Decay Metals F. An atom that has more protons than electrons. E the time taken for the radioactivity of a specified isotope to fall to half its original value. G. This group of elements are shiny at room temperature, good conductors under certain conditions, and share both properties of metals and nonmetals. Nonmetals Beta Decay F. The process in which particles in the nucleus move and change position and release a form of high energy waves. Metalloids Gamma Decay H. This group of elements are shiny, solid at room temperature, and good conductors. The element families that belong in this group include Alkali Metals, Alkaline Earth Metals, and Transition Metals G. Process in which the nucleus of an atom breaks up into two lighter nuclei H. The union of atomic nuclei to form heavier nuclei.
Basics in Organic Reactions Mechanisms
In organic chemistry, the mechanism of an organic reaction is defined as a complete step-by-step explanation of how a reaction of organic compounds happens. A completely detailed mechanism would relate the first structure of the reactants with the last structure of the products and would represent changes in structure and energy all through the reaction step.
Heterolytic Bond Breaking
Heterolytic bond breaking is also known as heterolysis or heterolytic fission or ionic fission. It is defined as breaking of a covalent bond between two different atoms in which one atom gains both of the shared pair of electrons. The atom that gains both electrons is more electronegative than the other atom in covalent bond. The energy needed for heterolytic fission is called as heterolytic bond dissociation energy.
Polar Aprotic Solvent
Solvents that are chemically polar in nature and are not capable of hydrogen bonding (implying that a hydrogen atom directly linked with an electronegative atom is not found) are referred to as polar aprotic solvents. Some commonly used polar aprotic solvents are acetone, DMF, acetonitrile, DMSO, etc.
Oxygen Nucleophiles
Oxygen being an electron rich species with a lone pair electron, can act as a good nucleophile. Typically, oxygen nucleophiles can be found in these compounds- water, hydroxides and alcohols.
Carbon Nucleophiles
We are aware that carbon belongs to group IV and hence does not possess any lone pair of electrons. Implying that neutral carbon is not a nucleophile then how is carbon going to be nucleophilic? The answer to this is that when a carbon atom is attached to a metal (can be seen in the case of organometallic compounds), the metal atom develops a partial positive charge and carbon develops a partial negative charge, hence making carbon nucleophilic.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images