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1 | |
Consider this set of quantum numbers: n = 3, l = 2, ml = -1, ms = +½
The maximum number of electrons in an atom which can share the above set of quantum numbers is
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| | A) | 1
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| | B) | 14
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| | C) | 3
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| | D) | 10
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| | E) | none of the above
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2 | |
An atom in its ground state contains 30 electrons. How many of these are in orbitals with l = 2?
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| | A) | 2
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| | B) | 4
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| | C) | 6
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| | D) | 8
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| | E) | 10
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3 | |
What are the possible values for the angular momentum quantum number (l)?
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| | A) | integers from -l to 0 to +l |
| | B) | 1, 2, 3, etc.
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| | C) | 2, 4, 6, etc.
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| | D) | +½ , -½
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| | E) | integers from 0 to n - 1
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4 | |
Which of the following sets of quantum numbers (n, l, ml, and ms) describes the electron which is most easily removed when a sodium atom is converted into a sodium ion?
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| | A) | 2, 1, 0, -½
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| | B) | 2, 0, 0, -½
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| | C) | 3, 1, 1, +½
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| | D) | 3, 2, 1, -½
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| | E) | 3, 0, 0, +½
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5 | |
The electron configuration of the outermost electrons of atoms of the halogen group is:
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| | A) | ns2np7 |
| | B) | ns1 |
| | C) | ns2np5 |
| | D) | ns2np6(n-1)d7 |
| | E) | ns2np6 |
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6 | |
The electronic configuration of the element whose atomic number is 26 is:
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| | A) | 1s2 2s2 2p6 3s2 3p6 4s0 3d8 |
| | B) | 1s2 2s2 2p6 3s2 3p6 3d6 4s2 |
| | C) | 1s2 2s2 2p6 3s2 3p6 4s2 3d6 |
| | D) | 1s2
2s2
2p6
3s2
3p6
4s2
3d4
4p2 |
| | E) | none of the above
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7 | |
Consider the element with the electron configuration: [Rn]7s25f7. How would you classify this element? |
| | A) | a representative element |
| | B) | a transition metal |
| | C) | a nonmetal |
| | D) | an actinide element |
| | E) | a noble gas |
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8 | |
Which of the following has the largest radius?
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| | A) | F
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| | B) | N
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| | C) | C
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| | D) | O
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| | E) | Ne
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9 | |
Which of the following elements has the largest ionization energy?
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| | A) | Na
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| | B) | Ne
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| | C) | F
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| | D) | K
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| | E) | Rb
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10 | |
Which of the following has the greatest electron affinity (most negative value)?
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| | A) | Cl
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| | B) | K
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| | C) | He
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| | D) | Na
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| | E) | Rb
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11 | |
In the periodic table, the most nonmetallic elements will be found
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| | A) | at the top of Group 3A (13)
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| | B) | at the top of Group 1A (1)
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| | C) | at the top of Group 7A (17)
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| | D) | at the bottom of Group 1A (1)
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| | E) | at the bottom of Group 7A (17)
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12 | |
Of the following oxides, which is the most acidic?
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| | A) | MgO
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| | B) | SiO2 |
| | C) | CO2 |
| | D) | P4O10 |
| | E) | K2O
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13 | |
Which of the following species is not isolectronic with any of the others?
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| | A) | V3+ |
| | B) | Ca2+ |
| | C) | Ar
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| | D) | Cl- |
| | E) | S2- |
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14 | |
Which of the following is not paramagnetic?
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| | A) | Co3+ |
| | B) | Se2- |
| | C) | Gd (element 64)
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| | D) | Ni
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| | E) | Gd3+ |
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15 | |
Which ion has the smallest radius?
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| | A) | Li+ |
| | B) | Na+ |
| | C) | K+ |
| | D) | Be2+ |
| | E) | Mg2+ |
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