Atomic structure and bonding - Jamb Chemistry Past Questions and Answers

Question 211:

• JAMB 2019

Which quantum divides shells into orbitals?

A. Spin
B. Principal
C. Azimuthal
D. Magnetic

Question 212:

• 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

Question 213:

• JAMB 2019

A solution X, on mixing with AgNO\(_3\) solution gives a white precipitate soluble in aqueous NH\(_3\), a solution Y, when also added to X, also gives a white precipitate which is soluble when heated solutions X and Y respectively contain

A. Al\(^{3+}\), Cl\(^-\)
B. Hg\(^+\), SO\(_4 ^{2-}\)
C. Pb\(^{2+}\), Cl\(^-\)
D. Ag\(^+\), SO\(_4 ^{2-}\)

Question 214:

• JAMB 2019

How many electrons will be found in the nucleus of an atom with mass number 23 and 17 neutrons?

A. None
B. 6
C. 7
D. 8

Question 215:

• JAMB 2019

An element Z contains 80% of \(^{16} _8\)Z and 20% of \(^{18} _8\)Z. Its relative atomic mass is

A. 16.2
B. 17.6
C. 16.0
D. 16.4