ionization - 2024 ACF Fall

Question

An inert gas such as xenon is used to accomplish this task in fast atom bombardment. For 10 points each:

[10h] Identify this process, which follows matrix-assisted laser desorption in one technique. This process is classified as either “hard” or “soft” based on the amount of fragmentation.

ANSWER: ionization [accept word forms or equivalents like forming ions; accept matrix-assisted laser desorption/ionization or hard ionization or soft ionization]

[10e] Ionization is the first step of a form of spectrometry named for this quantity that measures its ratio to charge. Daltons are the unit used to report atoms’ value of this quantity instead of grams.

ANSWER: mass [accept mass spectrometry; reject “weight”]

[10m] The calutron, an early mass spectrometer, was designed to help separate this element’s isotopes. This element’s “depleted” form contains almost none of its 235 isotope.

ANSWER: uranium [or U; accept depleted uranium]

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Summary


2024 ACF Fall at Cornell	fall	Y	9	20.00	100%	100%	0%
2024 ACF Fall at Ohio State	fall	Y	8	20.00	75%	100%	25%
2024 ACF Fall at Washington	fall	Y	6	20.00	100%	100%	0%
2024 ACF Fall at Georgia	fall	Y	12	19.17	83%	100%	8%
2024 ACF Fall at North Carolina	fall	Y	9	18.89	89%	100%	0%
2024 ACF Fall at Claremont Colleges	fall	Y	5	22.00	100%	100%	20%
2024 ACF Fall at Rutgers	fall	Y	9	16.67	78%	89%	0%
2024 ACF Fall at Illinois	fall	Y	9	22.22	100%	100%	22%

Data


Cornell G	U of Rochester B	0	10	10	20
ESF	Cornell A	0	10	10	20
Cornell F	Penn State	0	10	10	20
Jefferson County Scholars (DII)	Michigan C	0	10	10	20
Michigan A (UG)	Michigan B (UG)	0	10	10	20
Auburn B	Georgia Tech C	0	10	10	20
Georgia Tech E	Georgia Tech D	0	10	10	20
Appalachian State A	James Madison B	0	10	10	20
Liberty A	Duke A	0	10	10	20
UCLA C	Claremont B	0	10	10	20
UCLA D	Claremont C	0	10	10	20
Columbia J (DII)	Columbia A (UG)	0	10	10	20
Chicago B	Purdue B	0	10	10	20
Syracuse	Binghamton A	0	10	10	20
Binghamton C	RIT C	0	10	10	20
U of Rochester A	Cornell B	0	10	10	20
Binghamton B	RIT A	0	10	10	20
Cornell C	RIT B	0	10	10	20
CWRU A (UG)	West Virginia A (UG)	10	0	10	20
CWRU B (DII)	Miami A (UG)	0	10	10	20
Michigan State A	Michigan State B	0	10	10	20
Ohio State A (UG)	CWRU C (UG)	10	0	10	20
Arizona State B	UW Envy	0	10	10	20
UBC A	Boise State	0	10	10	20
UW Pride	UW Chastity	0	10	10	20
Emory A	Georgia Tech B	0	10	10	20
Vanderbilt A	Emory Oxford	0	10	10	20
Auburn C	Vanderbilt B	0	10	10	20
Liberty B	James Madison A	0	10	10	20
Virginia Tech A	Tusculum	0	10	10	20
Duke B	Virginia Tech B	0	10	10	20
UCLA A	USC	0	10	10	20
Fordham A	Maryland A (DII)	0	10	10	20
Lehigh A (UG)	Lehigh B (DII)	0	10	10	20
Lehigh A (UG)	Rutgers B	0	10	10	20
Lehigh A (UG)	Lehigh B (DII)	0	10	0	10
Lehigh A (UG)	Rutgers B	0	10	0	10
Lehigh A (UG)	Lehigh B (DII)	0	0	10	10
Lehigh A (UG)	Rutgers B	0	0	10	10
Lehigh A (UG)	Lehigh B (DII)	0	0	0	0
Lehigh A (UG)	Rutgers B	0	0	0	0
Illinois D	Illinois C	0	10	10	20
Chicago A	Iowa A	0	10	10	20
Notre Dame B	Purdue A	10	10	10	30
WashU A	Purdue C	0	10	10	20
Cornell D	Cornell E	0	10	10	20
Ohio State B (DII)	Miami B (UG)	0	10	10	20
Michigan D (UG)	West Virginia B (UG)	0	10	10	20
UW Gluttony	Alberta	0	10	10	20
Arizona State A	UW Lust	0	10	10	20
UBC B	UW Sloth	0	10	10	20
Tennessee A	Auburn A	10	10	10	30
Clemson A	Tennessee B	0	10	10	20
Clemson B	Georgia A	0	10	10	20
Furman	Alabama A	0	10	10	20
South Carolina A	Georgia Tech A	0	10	10	20
South Carolina B	Mississippi State A	0	0	10	10
Belmont	Southern	0	0	10	10
William & Mary	Liberty C	0	10	10	20
NC State	UNC D	0	0	10	10
UNC B	VCU	0	10	10	20
UNC C	UNC A	0	10	10	20
UCLA E	UCLA B	10	10	10	30
Claremont A	UCSD	0	10	10	20
Maryland B (DII)	Bard A (UG)	0	10	10	20
Columbia B	NYU A (UG)	0	0	10	10
NYU B	Rowan A (DII)	0	10	10	20
Penn B (DII)	Penn A (DII)	0	10	10	20
Lehigh B (DII)	Princeton A (UG)	0	10	10	20
Illinois A	Northwestern A	0	10	10	20
Illinois B	Indiana	0	10	10	20
Iowa B	WashU B	0	10	10	20
Notre Dame A	Notre Dame C	10	10	10	30