CHAPTER 4. THE ATOM 4.6
b. neutral
c. negative
d. none of the above
5. If Rutherford had used neutrons instead of alpha particles in his scattering
experiment, the neutrons would:
a. not deflect because they have no charge
b. have deflected more often
c. have been attracted to the nucleus easily
d. have given the same results
6. Consider the isotope^23492 U. Which of the following statements istrue?
a. The element is an isotope of^23494 Pu
b. The element contains 234 neutrons
c. The element has the same electron configuration as^23892 U
d. The element has an atomic mass number of 92
7. The electron configuration of an atom of chlorine can be represented us-
ing the following notation:
a. 1 s^22 s^83 s^7
b. 1 s^22 s^22 p^63 s^23 p^5
c. 1 s^22 s^22 p^63 s^23 p^6
d. 1 s^22 s^22 p^5
8. Give the standard notation for the following elements:
a. beryllium
b. carbon-12
c. titanium-48
d. fluorine
9. Give the electron configurations and Aufbau diagrams for the following
elements:
a. aluminium
b. phosphorus
c. carbon
d. oxygen ion
e. calcium ion
10. For each of the following elements give the number of protons, neutrons
and electrons in the element:
a.^19578 Pt
b.^4018 Ar
c.^5927 Co
d.^73 Li
e.^115 B
11. For each of the following elements give the element or number repre-
sented by x:
a.^10345 X
b.^35 xClChemistry: Matter and Materials 93