Lesson Worksheet: Quarks Chemistry
In this worksheet, we will practice describing the properties of quarks and the composition of protons and neutrons.
Q1:
A composite particle is composed of 2 up quarks and 1 down quark. What is the overall electric charge of this particle?
Q2:
Which of the following denotes the two values of electrical charge a quark can have?
- A and
- B0 and
- C and
- D and
- E and
Q3:
What electrical charge does an up quark possess?
- A
- B
- C
- D
- E
Q4:
Which of the following is not a type of quark?
- ABottom
- BStrange
- CLeft
- DUp
- EDown
Q5:
Which of the following is composed of 3 quarks in the form uud?
- AA proton
- BAn electron
- CBeta particles
- DAlpha particles
- EA neutron
Q6:
Which of the following represents the neutron composition of the quarks inside the nucleus of a helium atom with atomic symbol ?
- A2 neutrons, each composed of 1 down (d) quark and 2 up (u) quarks
- B4 neutrons, each composed of 1 up (u) quark and 2 down (d) quarks
- C6 neutrons, each composed of 1 up (u) quark and 2 down (d) quarks
- D2 neutrons, each composed of 1 up (u) quark and 2 down (d) quarks
- E2 neutrons, each composed of 3 down (d) quarks
Q7:
Calculate the total number of down quarks in the nucleus of an element that has atomic number 9 knowing that its nucleus contains 28 up quarks.
Q8:
What is the electrical charge of bottom quarks?
- A e
- B e
- C e
- D e
- E e
Q9:
The composition of the neutron from quarks is .
- Audd
- Buuu
- Cuud
- Dddd
Q10:
A neutron is electrically neutral because the sum of the quark charges forming it equals zero. Which of the following is the correct combination of quarks in a neutron?
- A3 down quarks
- B3 up quarks
- C1 up quark and 2 down quarks
- D2 up quarks and 1 down quark
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