Nuclear Chemistry - Chemistry Jamb Past Questions and Answers

Question 1 :

• JAMB 2004

The shape of s-orbitals is

A. Spherical
B. Elliptical
C. Spiral
D. Circular

Question 2 :

• JAMB 2004

²²⁶₈₈Ra → ^x₈₆Rn + α - particle
What is the value of x in the nuclear reaction above?

A. 220
B. 222
C. 226
D. 227

Question 3 :

• JAMB 2006

Nuclear fission involves the splitting of a heavy element into two nuclei of

A. Nearly equal masses with a relaese of energy and radiaton
B. Equal masses with a relaese of energy
C. Equal masses with a release of energy and radiation
D. Unequal masses without any relaese of energy

Question 4 :

• JAMB 2006

A decrease in atomic size and an increase in nuclear charge across a period lead to

A. An increase in the tendency to lose electron
B. An increase in chemical reactivity
C. A decrease in electropositivity
D. A decrease in covalency in bond formation

Question 5 :

• JAMB 2008

\( _{11} ^{11}Na + _0^1n → _{11}^{24}Na \)
The reaction above is an example of

A. Nuclear fission
B. Nuclear fusion
C. Artificial transmutation
D. Beta decay