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Exam 3: Atomic Structure and the Periodic Table

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Question 1

Multiple Choice

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Which of the following elements is a halogen?

A) (₉F)
B) (₅₀Sn)
C) (₇₉Au)
D) (₉₂U)

Correct Answer

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A

Question 2

Multiple Choice

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The correct electron configuration for ₁₇Cl is

A) 1s²2s²2p⁵
B) 1s²2s²2p⁶3s²
C) 1s²2s²2p⁶3s²3p⁵
D) 1s²2s²2p⁶3s²3p⁶4s²3d⁵

Correct Answer

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C

Question 3

Multiple Choice

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Which of the following periodic table groups contains three or more nonmetallic elements?

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 mass of an atom and the mass of its nucleus are essentially the same. (2) Two of the six electrons present in an atom of carbon are unpaired. (3) The element aluminum is located in the d area of the periodic table.

Which of the following characterizations for the element ₅₂Te is correct?

In which of the following pairs of elements are both members of the pair in the same period in the periodic table?

Choose the correct atom that has a nuclear charge of +17

Which of the following statements is correct for ?

Choose the appropriate pair of atoms that contain the same number of subatomic particles.

Which of the following characterizations for the element ₂₃V is correct?

Two naturally occurring isotopes exist for the hypothetical element dippium. 25.0 percent of dippium atoms have a relative mass of 17.0 amu and 75.0 percent a relative mass of 21.3 amu. What is the atomic mass of dippium?

Tin is element number 50. This means that all tin atoms have

Choose the appropriate electron configuration for an element with no unpaired electrons.

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) An electron configuration specifies subshell occupancy for electrons. (2) The atomic number is double the mass number for atoms that contain an equal number of protons and neutrons. (3) All occupied orbitals are completely filled in atoms of the element neon, which contains a total of 12 electrons.

Choose an appropriate pair of elements that have similar chemical properties.

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

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) All of the major minerals in the human body are metals. (2) Iron is the most abundant transition metal in the human body. (3) Deuterium is an isotope of hydrogen in which two protons are present.

Choose the correct atom that has an equal number of protons, neutrons, and electrons.

Choose an appropriate pair of elements that are in the same group of the periodic table.

Which of the following elements is both a metal and a representative element?