Barrons SAT Subject Test Chemistry, 13th Edition

(E) Fluorine has seven electrons in its outer energy level and needs only one more to complete its outer energy level octet. It ...

(C) The most active metal of the group is found in the lower left-hand corner. Because its outer energy level is farthest from ...

(C) The element that has the lowest electronegativity will be in the lower left corner. For this group, it is K. ...

(D) The element that has this configuration is carbon, which has six electrons. The first two are in the first level, and the n ...

(T, T) Both statements are true, but statement II does not explain statement I. ...

(T, T, CE) Because nonmetallic atoms gain electrons to form ions, the additional negative charge of the added electrons increas ...

(T, T, CE) Elements found in the upper right corner of the Periodic Table are nonmetals that form oxides and react with water t ...

3. Bonding 1. (A) When the electronegativity difference between the two atoms is greater than 1.7, the bond between them is cons ...

(B) When two atoms equally share a pair of electrons, the bond is considered covalent. With an electronegativity difference of ...

(E) Hydrogen bonding is the weakest because it is the weak attraction of the hydrogen end of a polar molecule to the partial ne ...

(E) Because of the strong hydrogen bonding in water, it takes much more energy to cause the molecules to break away from each o ...

(C) When the electronegativity difference between the two bonding atoms is between 0.3 and 1.7, the electrons are not equally s ...

(A) This is the definition of a pure ionic bond. ...

(D) Metallic bonds are defined as a “sea” of free electrons that migrate through the metal. ...

(T, T, CE) The mutual repulsion of two electron clouds forces them to the opposite sides of a sphere. An example is BeF 2 , whi ...

(T, F) The bond between sodium and chlorine in sodium chloride is ionic, because the difference between their electronegativity ...

(T, T, CE) The molecular structure of NH 3 is a trigonal pyramidal structure like this. ...

4. Chemical Formulas 1. Silver chloride ...

Calcium sulfate ...

Aluminum sulfate ...