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Section 1

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Elements from which two groups in the periodic table would most likely combine with each other to form an ionic compound? F 1 and 2 G 16 and 17 H 1 and 17 J 17 and 18

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Chemistry Science

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6 years ago

Date created

Mar 1, 2020

Cards (20)

Section 1

(20 cards)

Elements from which two groups in the periodic table would most likely combine with each other to form an ionic compound? F 1 and 2 G 16 and 17 H 1 and 17 J 17 and 18

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H

Back

Which of these elements is the most chemically active? A F B Cl C Br D I

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A

Back

An increase in atomic number is related to an increase in atomic mass because — F more electrons are present in the atomic nucleus G more electrons are orbiting the atomic nucleus H more protons are present in the atomic nucleus J more protons are orbiting the atomic nucleus

Front

H

Back

An atom contains 70 protons, 70 electrons, and 99 neutrons. What is the mass number? F 239 G 169 H 140 J 70

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G

Back

Oxygen and sulfur are in the same group (16) in the periodic table.This means that, in general, oxygen and sulfur — F will react only with each other G undergo similar reactions with other elements H can only react with elements in group 16 J combine only with elements in periods of 4 or higher

Front

G

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Which of these elements contains four valence electrons? F Helium G Beryllium H Carbon J Oxygen

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H

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Which of these elements has the smallest atomic radius? F Beryllium (Be) G Oxygen (O) H Sodium (Na) J Sulfur (S)

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G

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Which of the following is the name of the molecule PCl3? A Phosphorus trichloride B Phosphorus chloride C Potassium trichloride D Potassium chloride

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A

Back

Which element naturally occurs as a diatomic molecule? A Zn B C C K D H

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D

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According to the periodic table, which of the following series of elements is ordered according to decreasing reactivity? A He, Cs, Si, Mg B Cs, Mg, Si, He C Si, He, Cs, Mg D Mg, Si, Cs, He

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B

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According to their placement on the periodic table, which elements would have the most similar atomic structures? A Sodium and scandium B Sodium and barium C Sodium and potassium D Sodium and aluminum

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C

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With n representing the outermost energy level, the electron conﬁguration for that level for elements in Group 14 is — F ns2np1 G ns2np2 H ns2np3 J ns2np4

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G

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The alkali metals are located in which group of the periodic table? A 1 B 2 C 3 D 4

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A

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A neutral atom of calcium has 20 electrons.Calcium forms a 2 ion.How many electrons does a calcium ion have? F 2 G 18 H 20 J 22

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G

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The elements that are characterized by the presence of an incomplete d sublevel are called — F transition elements G alkali earth metals H halogens J lanthanoids

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F

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When compared to sulfur-32, sulfur-34 has more — A protons B neutrons C energy levels D bonding configurations

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B

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An alkali metal will most readily react with — A another alkali metal B an alkaline earth metal C a halogen D a noble gas

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C

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How many valence electrons does a neutral atom of silicon have? A 3 B 4 C 5 D 6

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B

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Atoms of the noble gases are generally inert because — F they are too large to react G they are not charged H they are neutral atoms J their outer electron levels are filled

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J

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Which of the following particles has a positive one charge? F Alpha G Electron H Neutron J Proton

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J

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