Electrons & The Periodic Table: Lesson 6 Check for Understanding
- Using only the PT, rank the following in terms of increasing (small to large) atomic radius: Na, Ar, P, Al
Ar, P, Al, Na
- Using only the PT, rank the following in terms of decreasing (large to small) electronegativity: Be, Sr, Ca, Mg
Be, Mg, Ca, Sr
- Using only the PT, rank the following in terms of increasing ionization energy (small to large): C, Sc, Ge, La
La, Sc, Ge, C
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(True/False) As you go down a group:
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True Atomic radius decreases.
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False The force of attraction between the nucleus and the outer electrons decreases.
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True The distance between the nucleus and outer electrons increases.
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False The number of occupied energy levels increases.
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(True/False) As you go across a period from left to right:
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true Ionization energy increases.
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false The number of occupied energy levels increases.
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true The charge of the nucleus increases.
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true The force of attraction between the nucleus and the outer electrons decreases.
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Which is the largest atom in Group 4a (14)? Fl
7. Which is the smallest atom in Group 7a (17)? F
8. Which is the smallest atom in period 5? Xe
11. In each of the following pairs, circle the species with the higher ionization energy:
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(Li) or Cs b) Cl or (Ar) c) Ca or (Br) d) Na or (Ne) e) (B) or Be
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For each of the following sets of atoms, rank the atoms from smallest to largest atomic radius:
a) Li, C, F b) Li, Na, K c) Ge, P, O d) C, N, Al
Li,C,F Li,Na,K O,P,Ge Al,C,N
- For each of the following sets of atoms, rank them from lowest to highest ionization energy:
a) Mg, S , Si b) Ba, Ca, Mg ). Br, Cl, F, d) Ba, Cu, Ne
Mg, Si, S . Ba, Ca, Mg . Br, Cl, F . Ba, Cu, Ne
- For each of the following sets of atoms, rank them from lowest to highest electronegativity:
a) C, Li, N b) C, Ne, O c) O, P, Si d) K, Mg, P
Li, C, N . C, O, Ne . Si, P, O . K, Mg, P