Atomic structure and bonding - Jamb Chemistry Past Questions and Answers

Question 131:

• JAMB 2007

A metal X forms two bromides with the formulae XBr₂ and XBr₃. What type of bonding exists between X and bromine in the bromide?

A. Ionic bonding
B. Metallic bonding
C. Dative bonding
D. Covalent bonding

Question 132:

• JAMB 2008

The atom of an element X is represented as _z^yX. The basic chemical properties of X depends on the value of

A. Y
B. Z
C. Y - Z
D. Z - Y

Question 133:

• JAMB 2008

The diagram above represent the electron sub-level for

A. Carbon
B. Nitrogen
C. Oxygen
D. Flourine

Question 134:

• JAMB 2008

In the periodic table, the electrical and thermal conductivities are properties of elements that

A. Decrease across the period and increase down the group
B. Increase across the period and decrease down the group
C. Decrease across the period and down the group`
D. Increase acrosss the period and down the group

Question 135:

• 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