WEEK 2 QUIZ
!!!DO NOT WRITE ON THIS QUIZ!!!
TEK 8.5A1. Actual STAAR Question:
A model of the atom is shown. What types of particles are found in the cloud surrounding the
atom’s nucleus?
a. Positively charged particles and negatively charge particles
b. Negatively charged particles only
c. Neutral particles and positively charged particles
d. Positively charged particles only
2. Actual STAAR Question:
Which of these best describes one of the subatomic particles that
could be found at location X in the model of an atom shown above?
a. It has mass but no charge.
b. It has no mass and a positive charge.
c. It has a large mass and a negative charge.
d. It has no mass and an equal number of positive and negative
charges.
3. Which statement about a proton is correct?
a. A proton has no electrical charge.
b. A proton has a positive electrical charge.
c. A proton has a negative electrical charge.
d. A proton has a neutral charge.
4.
The mass of the atoms is located in the:
a. electron cloud
c. atomic number
b. nucleus
d. shell
5. What information would best fit in the blank space represented by the X in the table below?
a.
b.
c.
d.
Negative
Nucleus
No Charge
1 amu
Charge
Proton
Positive
Electron
W
Neutron
X
For questions 6-15, calculate the mass of the atom.
6. Protons = 15; Neutrons = 16; Electrons = 10
31
7. Neutrons = 9; Protons = 16; Electrons = 15 25
8. Protons = 21; Neutrons = 13; Electrons = 11
34
Mass
1 amu
0 amu
Y
Location
Nucleus
Electron Cloud
Z
9. Neutrons = 14; Electrons = 9; Protons = 22
23
10. Electrons = 11; Neutrons = 17; Protons = 10
28
11. Protons = 13; Neutrons = 16; Electrons = 14
29
12. Protons = 8; Electrons = 16; Neutrons = 24
24
13. Protons = 4; Electrons = 8; Neutrons = 16
12
14. Electrons = 9; Neutrons = 12; Protons = 7
21
15. Protons = 13; Neutrons = 17; Electrons = 12
30
For questions 16-20 determine if the charge
A = Positive B = Negative C = Neutral (No Charge)
16. Protons = 15; Neutrons = 10; Electrons = 15
positive
17. Neutrons = 14; Electrons = 16; Protons = 13
neg.
18. Protons = 15; Electrons = 11; Neutrons = 13
posi.
19. Electrons = 16; Protons = 13; Neutrons = 13
neg.
20. Protons = 15; Neutrons = 16; Electrons = 15
no charge
21. Which of the following shows all of the subatomic particles in the correct location?
Neutron
Electron
Proton
Electron
Proton
A.
Electron
B.
C.
D.
For questions 22 and 23 answer in no less than 2 complete sentences.
22. How can small things be so powerful? How does this relate to atoms?
23. Why are electrons not important in determining an atom’s mass? What are electrons important for?