Mass Spectrometry Quiz

1.
Josef Mattauch is known for the development of Mattauch-Herzog double-focusing mass spectrometer and his work on isotopes and atomic weights. His career is connected with the Kaiser Wilhelm Institute for Chemistry in Berlin. Do you know where he was born?
- Berlin, Germany
- Ostrava, Czechia
- Klosterneuburg, Austria
Your answer:

Correct answer:

Josef Mattauch was born in 1895 in the city of Mährisch Ostrau, in what is now the Czech Republic, then part of the Austrian-Hungarian Empire.
2.
Joseph John Thomson (1856 - 1940), Nobel laureate in physics, is credited with the invention of the mass spectrometer, the discovery of the electron and isotopes of stable elements. A lesser-known fact is his father's profession. What was it?
- Electrical engineer
- Owner of an antiquarian bookshop
- Circus ringmaster
Your answer:

Correct answer:

His father, Joseph James Thomson, ran an antiquarian bookshop founded by Thomson’s great-grandfather. [Wikipedia]
3.
John Zeleny was an American physicist whose work laid the theoretical foundations of electrospray ionization. He was born in 1872 into a family of immigrants from Europe. Where did his family come from?
- Slovakia
- Czechia
- Poland
Your answer:

Correct answer:

The parents of John Zelený, Antonín Zelený and Josefa Pitková, came from Křídla, a small village near Žďár nad Sázavou in Austria-Hungary (now the Czech Republic).
4.
How many elements of the periodic table have only a single stable isotope?
- 0
- 15
- 26
Your answer:

Correct answer:

These so-called monoisotopic elements are beryllium, fluorine, sodium, aluminum, phosphorus, scandium, vanadium, manganese, cobalt, arsenic, rubidium, yttrium, niobium, rhodium, indium, iodine, cesium, lanthanum, praseodymium, europium, terbium, holmium, thulium, lutecium, rhenium, and gold.
5.
What is the electric charge of an ion with m/z = m?
- 1 C
- 1.602 176 634 x 10^-19 C
- 1 eV
Your answer:

Correct answer:

The particle carries one elementary charge, the value of which is 1.602 176 634 × 10⁻¹⁹ C (exactly).
6.
What is the trajectory of a charged particle moving perpendicularly to a uniform magnetic field in a vacuum?
- The particle follows a curved path and continues to follow this path until it forms a complete circle
- The particle follows a helical path
- The particle follows a straight line and accelerates
Your answer:

Correct answer:

The magnetic force is perpendicular to the velocity so that it does no work on the charged particle. The particle’s kinetic energy and speed thus remain constant. The direction of motion is affected but not the speed.
7.
What is the trajectory of a charged particle moving parallel to a uniform electric field in a vacuum?
- The particle follows a curved path and continues to follow this path until it forms a complete circle
- Neither the trajectory nor the velocity of the particle changes
- The particle either accelerates or decelerates, depending on the field direction and the particle charge sign
Your answer:

Correct answer:

If a positive charge is moving in the same direction as the electric field vector the particle's velocity will increase. If it is moving in the opposite direction it will decelerate. If a negative charge is moving in the same direction as the electric field vector the particle will decelerate. If it is moving in the opposite direction it will accelerate.
8.
Lunar craters are usually named after scientists and explorers. One of the craters on the Moon is named after a prominent scientist in the field of mass spectrometry. Who is named after?
- Francis William Aston
- Wolfgang Paul
- John Bennett Fenn
Your answer:

Correct answer:

Aston is a 44-kilometer lunar impact crater located along the northwestern limb of the Moon. The crater was named in honor of Francis W. Aston.
9.
Who built the first mass spectrometer in Czechia?
- Čermák, Hanuš, Jech, Cabicar
- Červinka, Dědek, Ferles
- Jára Cimrman
Your answer:

Correct answer:

The first mass spectrometer in the country was built in the Laboratory of Physical Chemistry of the Czechoslovak Academy of Sciences. Four young scientists, Vladimír Čermák, Vladimír Hanuš, Čestmír Jech and Josef Cabicar, took part in its construction. At the time of the post-war shortage, it was very difficult to find the necessary components; some parts originated from captured German military equipment. The mass spectrometer was of the Nier type with simple focusing and 60° magnetic field, pumped by a mercury diffusion pump. The device was completed after two years, in 1953. The construction of this instrument was an extraordinary achievement awarded a year later by the State Prize. [Z. Herman, Chem. Listy 104, 955, 2010]
10.
Which element has the largest number of stable isotopes?
- Molybdenum
- Tin
- Ytterbium
Your answer:

Correct answer:

Naturally occurring tin is a mixture of its ten stable isotopes and they are found in the percentages as follows: ¹¹²Sn (1.0 %), ¹¹⁴Sn (0.7 %), ¹¹⁵Sn (0.3 %), ¹¹⁶Sn (14.5 %), ¹¹⁷Sn (7.7 %), ¹¹⁸Sn (24.2 %), ¹¹⁹Sn (8.6 %), ¹²⁰Sn (32.6 %), ¹²²Sn (4.6 %), and ¹²⁴Sn (5.8 %). Molybdenum has six stable isotopes, ytterbium seven.

Mass Spectrometry Quiz

Mass Spectrometry Quiz

Thank you for taking our quiz!

1.
Josef Mattauch is known for the development of Mattauch-Herzog double-focusing mass spectrometer and his work on isotopes and atomic weights. His career is connected with the Kaiser Wilhelm Institute for Chemistry in Berlin. Do you know where he was born?

2.
Joseph John Thomson (1856 - 1940), Nobel laureate in physics, is credited with the invention of the mass spectrometer, the discovery of the electron and isotopes of stable elements. A lesser-known fact is his father's profession. What was it?

3.
John Zeleny was an American physicist whose work laid the theoretical foundations of electrospray ionization. He was born in 1872 into a family of immigrants from Europe. Where did his family come from?

4.
How many elements of the periodic table have only a single stable isotope?

5.
What is the electric charge of an ion with m/z = m?

6.
What is the trajectory of a charged particle moving perpendicularly to a uniform magnetic field in a vacuum?

7.
What is the trajectory of a charged particle moving parallel to a uniform electric field in a vacuum?

8.
Lunar craters are usually named after scientists and explorers. One of the craters on the Moon is named after a prominent scientist in the field of mass spectrometry. Who is named after?

9.
Who built the first mass spectrometer in Czechia?

10.
Which element has the largest number of stable isotopes?

Czech Museum
of Mass Spectrometry

Our partners

Mass Spectrometry Quiz

Mass Spectrometry Quiz

Thank you for taking our quiz!

1. Josef Mattauch is known for the development of Mattauch-Herzog double-focusing mass spectrometer and his work on isotopes and atomic weights. His career is connected with the Kaiser Wilhelm Institute for Chemistry in Berlin. Do you know where he was born?

2. Joseph John Thomson (1856 - 1940), Nobel laureate in physics, is credited with the invention of the mass spectrometer, the discovery of the electron and isotopes of stable elements. A lesser-known fact is his father's profession. What was it?

3. John Zeleny was an American physicist whose work laid the theoretical foundations of electrospray ionization. He was born in 1872 into a family of immigrants from Europe. Where did his family come from?

4. How many elements of the periodic table have only a single stable isotope?

5. What is the electric charge of an ion with m/z = m?

6. What is the trajectory of a charged particle moving perpendicularly to a uniform magnetic field in a vacuum?

7. What is the trajectory of a charged particle moving parallel to a uniform electric field in a vacuum?

8. Lunar craters are usually named after scientists and explorers. One of the craters on the Moon is named after a prominent scientist in the field of mass spectrometry. Who is named after?

9. Who built the first mass spectrometer in Czechia?

10. Which element has the largest number of stable isotopes?

Czech Museumof Mass Spectrometry

Our partners

1.
Josef Mattauch is known for the development of Mattauch-Herzog double-focusing mass spectrometer and his work on isotopes and atomic weights. His career is connected with the Kaiser Wilhelm Institute for Chemistry in Berlin. Do you know where he was born?

2.
Joseph John Thomson (1856 - 1940), Nobel laureate in physics, is credited with the invention of the mass spectrometer, the discovery of the electron and isotopes of stable elements. A lesser-known fact is his father's profession. What was it?

3.
John Zeleny was an American physicist whose work laid the theoretical foundations of electrospray ionization. He was born in 1872 into a family of immigrants from Europe. Where did his family come from?

4.
How many elements of the periodic table have only a single stable isotope?

5.
What is the electric charge of an ion with m/z = m?

6.
What is the trajectory of a charged particle moving perpendicularly to a uniform magnetic field in a vacuum?

7.
What is the trajectory of a charged particle moving parallel to a uniform electric field in a vacuum?

8.
Lunar craters are usually named after scientists and explorers. One of the craters on the Moon is named after a prominent scientist in the field of mass spectrometry. Who is named after?

9.
Who built the first mass spectrometer in Czechia?

10.
Which element has the largest number of stable isotopes?

Czech Museum
of Mass Spectrometry