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24 Cards in this Set
- Front
- Back
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What is the term for the region of very high density in the center of the atom?
a. atomic center b. atomic core c. atomic kernel d. atomic nucleus e. none of the above |
d. atomic nucleus
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What is the negatively charged subatomic particle having a negligible mass?
a. electron b. neutron c. proton d. quark e. none of the above |
a. electron
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What is the term for two atoms of the same element that differ by the number of neutrons in the nucleus?
a. atomic mass units b. isotopes c. nucleons d. photons e. none of the above |
b. isotopes
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According to the Thomson model, what is the relative charge on an electron?
a. –1 b. +1 c. –2 d. +2 e. none of the above |
a. –1
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Which subatomic particle has a relative charge of +1 and a mass of ~1 amu?
a. alpha b. electron c. neutron d. proton e. none of the above |
d. proton
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Which of the following subatomic particles is found outside the nucleus?
a. electron b. neutron c. proton d. all of the above e. none of the above |
a. electron
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Which of the following subatomic particles are found inside the nucleus?
a. electron and neutron b. neutron and proton c. proton and electron d. all of the above e. none of the above |
b. neutron and proton
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Indicate the element having 26 p+, 32 n0, and 26 e–.
a. S b. Fe c. Ge d. Ce e. Te |
b. Fe
Quite easily the ONLY element that contains 26 protons (atomic number) is Iron. |
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How many neutrons are in the nucleus of an atom of Co-60?
a. 27 b. 33 c. 60 d. 87 e. none of the above |
b. 33
Take it's atomic mass and subtract the atomic number (amount of protons). Make sure to round up its mass. Therefore 58.93 = 60 60-27=33 neutrons |
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Given that the only naturally occurring isotope of gold is 197Au, what is its isotopic mass? (Hint: Refer to the Periodic Table.)
a. 79.00 amu b. 117.97 amu c. 118.00 amu d. 196.97 amu e. 275.97 amu |
d. 196.97 amu
It's listed within the Au element as atomic mass. |
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Element Y has two natural isotopes: Y-63 (62.940 amu) and Y-65 (64.928 amu). Calculate the atomic mass of element Y given the abundance of Y-63 is 69.17%.
a. 63.55 amu b. 64.00 amu c. 64.32 amu d. 107.85 amu e. 108.46 amu |
a. 63.55 amu
y-63 = 62.940 x .6917 = 43.53 y-65 64.928 x .3083 = 20.01% 43.53 + 20.01 = 63.55 amu |
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Which of the following colors of light has the highest energy?
a. violet b. blue c. green d. red |
a. violet
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Which of the following produces the "atomic fingerprint" (emission line spectrum) of an element?
a. electrons jumping to a higher energy level b. electrons dropping to a lower energy level c. protons jumping to a higher energy level d. protons dropping to a lower energy level e. none of the above |
b. electrons dropping to a lower energy level
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What is the maximum number of electrons that can occupy a p energy sublevel?
a. 2 b. 6 c. 10 d. 14 e. none of the above |
b. 6
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What is the maximum number of electrons that can occupy the 2nd energy level?
a. 1 b. 2 c. 4 d. 8 e. none of the above |
e. none of the above
the second level is "P" and can have a max of 6. |
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Which electron sublevel follows the 4s sublevel according to increasing energy?
a. 3p b. 3d c. 4p d. 4d |
b. 3d
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What is the electron configuration for an atom of silicon?
a. 1s2 2s2 2p4 b. 1s2 2s2 2p6 3s2 c. 1s2 2s2 2p6 3s2 3p2 d. 1s2 2s2 2p6 3s2 3p4 e. none of the above |
c. 1s2 2s2 2p6 3s2 3p2
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Which element has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d5?
a. Br b. Mn c. Nb d. Tc e. none of the above |
d. Tc
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What term best describes the shape of an s orbital?
a. sphere b. dumbbell c. clover d. ellipse e. wave |
a. sphere
"P" is a dumbell shape |
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What term best describes the shape of a p orbital?
a. sphere b. dumbbell c. clover d. ellipse e. wave |
b. dumbbell
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Which of the following orbitals is the largest in size?
a. 1s b. 2s c. 3s d. 4s e. all s orbitals are the same size |
d. 4s
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How many orbitals are in the 4p subshell?
a. 1 b. 3 c. 4 d. 5 e. none of the above – probably six: 1s, 2s,2p,3s,3p,4s,3d,4p |
b. 3
4s, 4p, 4d, 4f 3s, 3p, 3d 2s, 2p 1s Looking at the GROUPS or orbitals. 1's group, 2's group, 3's group, then there's the 4's group. So there are "3" groups of orbitals underneath 4P |
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Which of the following elements does not have a stable isotope?
(Hint: Refer to the Periodic Table.) a. Ta b. Tc c. Te d. Ti e. none of the above |
b. Tc
It's radio active. |
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Which of the following physical properties is different for ordinary water and heavy water?
a. density b. melting point c. molar mass d. all of the above e. none of the above |
d. all of the above
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