- - Au's is 79
- - Physicist's concern: Abbr.
- - Gold's is 79: abbr.
- - Be and B's differ by one
- - Uranium's 92, e.g. (abbr.)
- - Physicist's figure: Abbr.
- - Physicist's concern, for short
- - O's is 8
- - N's is 7
- - It's 5 for B and 6 for C: Abbr.
- - He's two? (abbr.)
- - 7 for N, e.g.
- - Physicist's abbr.
- - 8 for O, e.g
- - Scandium's is 21: Abbr
- - What 'This' refers to, in this puzzle's theme: Abbr
- - O's is one more than N's
- - It's 8 for O
- - He's 2, for one
- - 7, for N
- - He's 2, e.g.
- - W's is 74
- - Fig. for I, O or U, but not A or E
- - Oxygen's 8: Abbr.
- - Zinc's is 30: Abbr.
- - He's 2, say
- - 8 for O or 6 for C
- - 8 for O, say
- - 72 Across' is 99: Abbr.
- - .... extra cost
- - Words with cost or time
- - .... cost [free, 2 wds.]
- - .... extra cost [2 wds.]
- - ...... point (never)
- - 79 for gold, e.g.: Abbr.
- - Physics abbr.
- - Chem. datum
- - 47, for silver: Abbr.
- - ...... time (never): 2 wds.
- - Words with "cost to you" or "time"
- - Words before time or expense
- - Periodical table abbr.
- - Periodic table datum, briefly
- - Nuclear reading: Abbr.
- - Nuclear abbr.
- - Fig. on a table
- - Elem.-table heading
- - Digit connected to chem. elements
- - 95 for Am or 100 for Fm: Abbr.
- - 80, for Hg
- - 8, for oxygen: Abbr.
- - 79, for the chem. symbol at the heart of the four longest puzzle answers
- - 79, for gold: Abbr.
- - 79, for Au
- - 5 for B or 6 for C, e.g.
- - 47 for Ag, e.g.
- - 29 for copper, e.g.: Abbr.
- - 26, for Fe
- - 26 for Fe: Abbr.
- - 14 for Si or 102 for No: Abbr.
- - 12 for Mg or 20 for Ca, e.g.
- - 1 for H, or 2 for He
- - "--- added expense" (free)
- - "...... extra cost" (sales plug)
- - "...... cost to you" (free)
- - -- time (not once)
- - -- time (not even once)
- - ...... risk (safely)
- - Fig. on a periodic table
- - Words before time or cost
- - ...... time (never)
- - 53 for I, e.g
- - .... extra cost (free)
- - 88 for Ra, e.g
- - .... cost (free)
- - '...... additional cost!'
- - ...... expense (free)
- - Periodic table fig
- - 5 for B or 6 for C
- - Lead-in for time or point
- - 1 for H, 2 for He or 3 for Li
- - 47 for Ag or 79 for Au
- - Chemical element fig
- - 11 for Na or 17 for Cl, for example
- - 50, for Sn
- - Md or Rn fig
- - 26, for 66-Across: Abbr
- - 13 for Al, e.g
- - ...... cost (gratis)
- - 28 for 113-Across, e.g.: Abbr
- - 9 for F, or 19 for K
- - 1 for hydrogen or 2 for helium: Abbr
- - "...... added expense"
- - Chemistry text fig
- - 42, for Mo
- - 79 for Au or 82 for Pb: Abbr
- - 4, for Be
- - With 90-Down, free
- - -- charge (costing zip)
- - "... ...... cost to you!"
- - Words before time or point
- - Periodic table info
- - Periodic table abbr.
- - "... ...... extra cost to you"
- - -- charge (gratis)
- - Stat. for Re, La or Ti
- - Figure on a table: Abbr.
- - 47, for Ag
- - What various elements of this grid become in their crossing entries: Abbr.
- - 1 for H or 2 for He, e.g.
- - Periodic table info: Abbr.
- - ...... charge (free)
- - 1 for H, e.g.
- - 2, for helium: Abbr.
- - -- cost (for free)
- - Am or Fm stat
- - 6, for C
- - Elemental ID
- - 92, for U
- - 2, for He
- - -- cost (on the house)
- - Periodic table stat.
- - "... .... additional cost to you!"
- - 13, for Al
- - Periodic table listing: Abbr
- - Extra charge
- - Element: Abbr.
- - Cost
- - "Time ...!"
- - Charge
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