Exam 3: Atomic Structure and the Periodic Table

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) The number of elements that are metals and nonmetals is approximately equal. (2) The number of orbitals present in an electron subshell is always six. (3) An atom as a whole is electrically neutral because all charged subatomic particles reside in the nucleus.

(Multiple Choice)

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Question 41

Which of the following element classification pairings is incorrect?

(Multiple Choice)

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Question 42

Which of the following electron configurations corresponds to an element in the same group of the periodic table as the element whose electron configuration is 1s²2s²2p⁵?

(Multiple Choice)

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Question 43

In which of the following pairs of elements are both members of the pair metals?

(Multiple Choice)

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Question 44

Which of the following elements is an inner-transition element?

(Multiple Choice)

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Question 45

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) The shape of an s orbital is always spherical. (2) All naturally occurring atoms of an element must be identical to each other in terms of subatomic particle makeup. (3) The alkaline earth metals are the elements in group IA of the periodic table.

(Multiple Choice)

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Question 46

Which of the following statements concerning the nucleus of an atom is correct?

(Multiple Choice)

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Question 47

After the 4s subshell of an atom is filled with electrons, the next electron added will enter the

(Multiple Choice)

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Question 48

Isotopes of a given element

(Multiple Choice)

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Question 49

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) Most of the mass of an atom is concentrated in its nucleus. (2) Sufficient information is present on a "standard" periodic table to determine the number of neutrons present in atoms of an element. (3) An atom whose electron configuration is 1s²2s²2p⁶3s¹ contains 12 electrons.

(Multiple Choice)

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Question 50

Period number and group number in the periodic table are numerically equal for which of the following elements?

(Multiple Choice)

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Question 51

Choose the appropriate electron configuration for an element that has two unpaired electrons.

(Multiple Choice)

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Question 52

The nuclear charge for an atom of is

(Multiple Choice)

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Question 53

Which of the following elements is a transition element?

(Multiple Choice)

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Question 54

Choose the correct atom that has a mass number of 17.

(Multiple Choice)

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Question 55

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) The maximum number of electrons that can occupy an electron shell is the same as the shell number. (2) A nucleus is the very small dense uncharged center of an atom. (3) The number of inner transition elements is greater than the number of transition elements.

(Multiple Choice)

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Question 56

Choose the appropriate pair of atoms that contain the same number of protons.

(Multiple Choice)

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Question 57

Which of the following statements is correct for

(Multiple Choice)

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Question 58

Chlorine, which exists in nature in two isotopic forms, has an atomic mass of 35.5 amu. This means that:

(Multiple Choice)

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Question 59

Which of the following statements about a d subshell is correct?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 70

Exam 3: Atomic Structure and the Periodic Table

Which of the following element classification pairings is incorrect?

Which of the following electron configurations corresponds to an element in the same group of the periodic table as the element whose electron configuration is 1s22s22p5?

In which of the following pairs of elements are both members of the pair metals?

Which of the following elements is an inner-transition element?

Which of the following statements concerning the nucleus of an atom is correct?

After the 4s subshell of an atom is filled with electrons, the next electron added will enter the

Isotopes of a given element

Period number and group number in the periodic table are numerically equal for which of the following elements?

Choose the appropriate electron configuration for an element that has two unpaired electrons.

The nuclear charge for an atom of is

Which of the following elements is a transition element?

Choose the correct atom that has a mass number of 17.

Choose the appropriate pair of atoms that contain the same number of protons.

Which of the following statements is correct for

Chlorine, which exists in nature in two isotopic forms, has an atomic mass of 35.5 amu. This means that:

Which of the following statements about a d subshell is correct?

Basic Concepts About Matter

Measurements in Chemistry

Chemical Bonding: the Ionic Bond Model

Chemical Bonding: the Covalent Bond Model

Chemical Calculations: Formula Masses, Moles, and Chemical Equations

Gases, Liquids, and Solids

Solutions

Chemical Reactions

Acids, Bases, and Salts

Nuclear Chemistry

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Carboxylic Acids, Esters, and Other Acid Derivatives

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Biochemical Energy Production

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Which of the following electron configurations corresponds to an element in the same group of the periodic table as the element whose electron configuration is 1s²2s²2p⁵?