Cracking the SAT Chemistry Subject Test

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SOME IMPORTANT PERIODIC TRENDS For the SAT Chemistry Subject Test, you’ll need to know about four impor ...

Electronegativity An atom’s electronegativity value refers to the amount of “pull” that an atom’s nucleus ...

you move towards fluorine. Atomic Radius We can think of an atom as being roughly spherical, with the nucleu ...

As you move across the periodic table from left to right, atomic radius decreases. As you move ...

period, metallic character decreases. As you move from top to bottom down a group (towards francium), met ...

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Often, you will see a Periodic Table drawn with a “staircase” on it. This staircase delineates the metals ...

that touch the staircase itself are considered metalloids, which have characteristics of both metals ...

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Review what we’ve said about the periodic table, and tackle the following questions. The answers c ...

DRILL 1 Question Type A Questions 1–3 refer to the following. (A) Na (B) Ca (C) Mn (D) F (E) Ne Is an alkal ...

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Question Type C Which of the following metals is most reactive? (A) Sodium, Na (B) Magnesium, Mg (C) Copper, Cu ...

(D) Ca, K, Br, Kr (E) Br, Kr, Ca, K ...

CHEMICAL BONDING Not surprisingly, the SAT Chemistry Subject Test will want you to know someth ...

But what about chlorine? Having gained an electron, chlorine also ends up with 8 electrons in its out ...

electrons than it is for it to lose six, so sulfur forms negative anions with a charge of negative ...

gains two electrons to become S2−. In order to balance the charge, two sodium ions must be present to ...

Other polyatomic ions may appear on the test, but if they do, the formula and charges will be provided for ...