Nuclear Chemistry - Chemistry Jamb Past Questions and Answers

Question 16 :

• JAMB 2018

The radio isotope used in industrial radiography for the rapid checking of faults in welds and casting is?

A. Carbon-14
B. Phosphorus-32
C. Cobalt
D. Iodine-131

Question 17 :

• JAMB 2019

Which of the following statements does not show Rutherford's account of Nuclear Theory? An atom contains a region

A. Which contains protons and neutrons
B. Which is positively charged
C. Which is massive and can cause deflection of a few projectiles
D. Which is very large and in which close to 98% of projectiles pass undeflected

Question 18 :

• JAMB 2019

A radioactive nucleus has a half-life of 20 years, starting with 100,000 particles, how many particles will be left exactly at the end of 40 years

A. 75,000 particles
B. 35,000 particles
C. 25,000 particles
D. 50,000 particles

Question 19 :

• JAMB 2019

The emission of two successive beta particles from the nucleus \(^{32} _{15} P\) will produce

A. \(^{30} _{14}\)Si
B. \(^{32} _{13}\)Al
C. \(^{32} _{17}\)Cl
D. \(^{32} _{16}\)S