Barrons SAT Subject Test Chemistry, 13th Edition

(E) That a substance occupies space and mass is the basic definition of all matter. ...

(D) Weight is the product of mass times a gravitational force. In outer space where there is no gravitational force, we say a m ...

(F, T) The column I statement is false, because a mixture is elements and/or compounds in physical contact (without bonds) with ...

(T, T, CE) Chemical reactions involve the changing of molecular structures by the breaking of bonds and the formation of new bo ...

(F, T) Burning paper is a chemical reaction not a physical one. The statement in column II is true, because a chemical change a ...

2. Atomic Structure and the Periodic Table of the Elements 1. (C) The two main parts of the atom are the nucleus and its energy ...

(B) The principal quantum numbers start with the value of 1 to represent the first level. ...

(A) The letter s is used to represent the first orbital that can hold two electrons. ...

(A) The sublevel d has five orbitals that each can hold two electrons, totaling ten electrons. ...

(C) Each orbital can only hold two electrons. ...

(B) The mass number is the total of the number of protons and neutrons, which in this case is nine. ...

(D) The second principal energy level has an s orbital and three p orbitals, making a total of four. ...

(D) The Lewis electron-dot notation shows the symbol and the outermost energy-level electrons, which are referred to as the val ...

(B) Chlorine is a member of the halogen family found in group 17. The other element in the same family would be the element wit ...

(A) Radioactive changes differ because they involve changes in the nucleus. ...

(B) Isotopes differ in their atomic mass because of differences in the number of neutrons. ...

(C) These two isotopes,^235 U and^238 U, differ in their atomic mass by 3 neutrons. ...

(A) Radioactive isotopes have been successful in the treatment of certain cancers. ...

(A) A beta particle emission causes an increase of 1 in the atomic number. ...

(B) Because Na (sodium) has the position shown, it has the atomic number The electron configuration is 1s^2 2 s^2 2 p^6 3 s^ ...