REGULAR QUIZZES - REGULAR TOPIC 3 Atoms, Elements, Molecules & Ions SET E
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QUESTION 1. Millikan used what in his experiments relating to the atom?

(A) Gold Foil
(B) Neutrons
(C) Oil Drops
(D) Protons
(E) Cheerios

QUESTION 2. An atom with an atomic number of 82 and a mass number of 207 has how many electrons?

(A) 207
(B) 207-82
(C) 82
(D) It depends on the isotope
(E) None of the above

QUESTION 3. What is the ratio of sodium ionto chloride ions in the compound sodium chloride?

(A) 1:2
(B) 1:3
(C) 1:1
(D) 2:1
(E) 3:2

QUESTION 4. What is the ratio of aluminum ions to oxide ions in the compound aluminum oxide?

(A) 1:1
(B) 1:2
(C) 2:3
(D) 3:2
(E) 3:3

QUESTION 5. What commonly occurs when group 15 elemnts form ions?

(A) Lose 1 electron
(B) Lose 2 electrons
(C) Gain 3 electrons
(D) Gain 2 electrons
(E) Lose 3 electrons



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