General Chemistry First Semester Review General
... 5. Sketch and label the location and charges of the subatomic particles in an atom of oxygen-15. 6. What physical properties distinguish metals from nonmetals? 7. Elemental oxygen forms diatomic molecules (O2). Draw a Lewis structure for an oxygen molecule (that’s showing the total valence electrons ...
... 5. Sketch and label the location and charges of the subatomic particles in an atom of oxygen-15. 6. What physical properties distinguish metals from nonmetals? 7. Elemental oxygen forms diatomic molecules (O2). Draw a Lewis structure for an oxygen molecule (that’s showing the total valence electrons ...
1 - shawnschmitt
... g. Mole- the amount of particles in 12g of Carbon-12, also, the amount of substance having 6.022x1023 of any kind of particle h. half-life- the amount of time required for ½ of the mass of an isotope to decay i. metalloid- those elements that have properties of both metals and nonmetals j. Ionizatio ...
... g. Mole- the amount of particles in 12g of Carbon-12, also, the amount of substance having 6.022x1023 of any kind of particle h. half-life- the amount of time required for ½ of the mass of an isotope to decay i. metalloid- those elements that have properties of both metals and nonmetals j. Ionizatio ...
Final Exam Review
... 67. Which of the following compounds are most likely not ionic? A. H2O B. Na2O C. CO2 D. CaS E. SO2 F. NH3 ...
... 67. Which of the following compounds are most likely not ionic? A. H2O B. Na2O C. CO2 D. CaS E. SO2 F. NH3 ...
Midterm Review
... • As ice cools from 273 K to 263 K, the average kinetic energy of its molecules will 1. decrease 2 increase ...
... • As ice cools from 273 K to 263 K, the average kinetic energy of its molecules will 1. decrease 2 increase ...
Chemical Bonds Study Guide Answer Key
... constitute a particular chemical compound, using element symbols and numbers. 2. Molecule- electrically neutral group of two or more atoms held together by chemical bonds 3. Valence electrons- electrons located in the outermost electron level of an atom 4. Octet rule- chemical rule of thumb that sta ...
... constitute a particular chemical compound, using element symbols and numbers. 2. Molecule- electrically neutral group of two or more atoms held together by chemical bonds 3. Valence electrons- electrons located in the outermost electron level of an atom 4. Octet rule- chemical rule of thumb that sta ...
Chemical Bonds - coellochemistry
... rule: all elements want to obtain 8 valence electrons and become stable ...
... rule: all elements want to obtain 8 valence electrons and become stable ...
The Chemical Basis of Life
... – Formed when electrons are completely transferred from one atom to another – The atom that gains electrons becomes a negative ion (anion) – The atom that loses electrons becomes a positive ion (cation) – Example: Sodium chloride Na + Cl Na+ Cl– ...
... – Formed when electrons are completely transferred from one atom to another – The atom that gains electrons becomes a negative ion (anion) – The atom that loses electrons becomes a positive ion (cation) – Example: Sodium chloride Na + Cl Na+ Cl– ...
TEST REVIEW S Valence Electrons TEST REVIEW SHEET 2017
... NOTE: If an element has <4 valence electrons it will give them away during an ionic bond and become a positive ion. If >4, it will take them and become a negative ion For the most part…. metals will give away their valence electrons and nonmetals will take enough valence electrons to fill their oute ...
... NOTE: If an element has <4 valence electrons it will give them away during an ionic bond and become a positive ion. If >4, it will take them and become a negative ion For the most part…. metals will give away their valence electrons and nonmetals will take enough valence electrons to fill their oute ...
Basic Chemistry notes
... Atoms are considered stable when their outermost orbital has __________electrons The exception to this rule of eights is Shell 1, which can only hold _________ electrons ...
... Atoms are considered stable when their outermost orbital has __________electrons The exception to this rule of eights is Shell 1, which can only hold _________ electrons ...
Midterm Review.ppt - Chemistry R: 4(AE)
... • What Kelvin temperature is equal to 25°C? 1. 248 K 2. 298 K 3. 100 K 4. 200 K ...
... • What Kelvin temperature is equal to 25°C? 1. 248 K 2. 298 K 3. 100 K 4. 200 K ...
Chapter 9 - Fayetteville State University
... 7) Periodic Law: States that elements arranged in order of the atomic number share similar chemical and physical properties. These arrangement are called groups, examples are the alkali metals (Li, Na, K, Rb, Cs), the halogens (F, Cl, Br, I). 8) Groups: A sequence of elements of increasing atomic nu ...
... 7) Periodic Law: States that elements arranged in order of the atomic number share similar chemical and physical properties. These arrangement are called groups, examples are the alkali metals (Li, Na, K, Rb, Cs), the halogens (F, Cl, Br, I). 8) Groups: A sequence of elements of increasing atomic nu ...
synoptic - chemnotes.org.uk
... A covalent bond is a shared pair of electrons Covalent bonds hold atoms together because both nuclei are attracted to the shared pair of electrons The strength of the bond depends on the strength of attraction between the nuclei and the shared pair Down a group attraction for the shared pair will de ...
... A covalent bond is a shared pair of electrons Covalent bonds hold atoms together because both nuclei are attracted to the shared pair of electrons The strength of the bond depends on the strength of attraction between the nuclei and the shared pair Down a group attraction for the shared pair will de ...
Atoms in Combination: The Chemical Bond
... Calcium and chlorine neutral-atom electron configurations (left), and their configurations after electrons have been transferred from the calcium to the chlorine atoms (right). ...
... Calcium and chlorine neutral-atom electron configurations (left), and their configurations after electrons have been transferred from the calcium to the chlorine atoms (right). ...
PS7aChemistryReviewRevised
... Instant coffee dissolves in water. Chocolate melts in a warm room ...
... Instant coffee dissolves in water. Chocolate melts in a warm room ...
WS on obj. 1-11
... 14. _____ (T/F) Calcium will need to lose two electrons to get the electron configuration of argon. 15. _____ (T/F) All the alkaline earth elements (Group 2A) will need to lose two electrons to obtain a noble gas electron configuration. 16. _____ (T/F) All the elements of the oxygen group (Group 6A ...
... 14. _____ (T/F) Calcium will need to lose two electrons to get the electron configuration of argon. 15. _____ (T/F) All the alkaline earth elements (Group 2A) will need to lose two electrons to obtain a noble gas electron configuration. 16. _____ (T/F) All the elements of the oxygen group (Group 6A ...
Worksheet 20.2
... 1- Atoms can achieve a noble gas structure by gaining, losing or sharing electrons with other atoms. 2- The rule states that, except for hydrogen , an atom combines with other atoms to form bonds in order to have 8 electrons in its valence energy level ( like noble gases). Lewis dot symbols are repr ...
... 1- Atoms can achieve a noble gas structure by gaining, losing or sharing electrons with other atoms. 2- The rule states that, except for hydrogen , an atom combines with other atoms to form bonds in order to have 8 electrons in its valence energy level ( like noble gases). Lewis dot symbols are repr ...
Chemistry Test Study Guide
... 21. A mixture is created when two pure substances are combined so that each of the pure substances retains its own properties. 22. Where is the majority of the mass of an atom located? In the nucleus.(Protons and Neutrons) 23. If an atom loses electron’s, will it have a positive or negative charge? ...
... 21. A mixture is created when two pure substances are combined so that each of the pure substances retains its own properties. 22. Where is the majority of the mass of an atom located? In the nucleus.(Protons and Neutrons) 23. If an atom loses electron’s, will it have a positive or negative charge? ...
MatterPP4
... composed of atoms of two or more different elements that are chemically combined. Most compounds have totally different properties from the elements of which they are composed. Chemical bonds are the forces that hold the elements together in a compound creating a state of stability. ...
... composed of atoms of two or more different elements that are chemically combined. Most compounds have totally different properties from the elements of which they are composed. Chemical bonds are the forces that hold the elements together in a compound creating a state of stability. ...
Exam on Matter through Bonding
... 19. What is the total number of neutrons in an atom of an element that has a mass number of 19 and an atomic number of 9? ...
... 19. What is the total number of neutrons in an atom of an element that has a mass number of 19 and an atomic number of 9? ...
Chemistry I Honors – Semester Exam Review – Fall 2000
... 6. Classify the following substances as solid, liquid, gas, or plasma based on their properties. a. flexible volume, high KE, particles can disperse freely. b. flexible volume, very high KE, particles are charged. c. fixed volume, very low KE, orderly particles. d. fixed volume, low KE, particles ca ...
... 6. Classify the following substances as solid, liquid, gas, or plasma based on their properties. a. flexible volume, high KE, particles can disperse freely. b. flexible volume, very high KE, particles are charged. c. fixed volume, very low KE, orderly particles. d. fixed volume, low KE, particles ca ...
Biol 1441
... Electronegativity: is the attraction of a particular kind of atom for the electrons of a covalent bond Nonpolar covalent bond: the electrons of the bond are shared equally. Ex: N2 Polar covalent bond: the electrons of the bond are not shared equally. Ex: HCl Ionic Bonds: Two atoms are so unequal in ...
... Electronegativity: is the attraction of a particular kind of atom for the electrons of a covalent bond Nonpolar covalent bond: the electrons of the bond are shared equally. Ex: N2 Polar covalent bond: the electrons of the bond are not shared equally. Ex: HCl Ionic Bonds: Two atoms are so unequal in ...
Lecture 3: Electronic Band Theory: A Many
... other) bonds. For certain atoms there are electrons not used in the covalent bond that can be “delocalized”, that is, their wavefunction can spread over the entire lattice. ...
... other) bonds. For certain atoms there are electrons not used in the covalent bond that can be “delocalized”, that is, their wavefunction can spread over the entire lattice. ...