Atomic structure and bonding - Jamb Chemistry Past Questions and Answers

Question 86:

• JAMB 1998

The diagram above represents an atom that can combine with chlorine to form

A. A covalent bond
B. An electrovalent bond
C. A hydrogen bond
D. A co-ordinate bond

Question 87:

• JAMB 1999

1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁷, 4s²
An element with the electronic configuration above is a

A. Non-metal
B. Metal
C. Transition element
D. Group two element

Question 88:

• JAMB 1999

Given that electronegativity increases across a period and decreases down a group in the periodic table, in which of the following compounds will the molecules be held together by the strongest hydrogen bond?

A. HF_(g)
B. NH_3(g)
C. CH_4(g)
D. HCl_(g)

Question 89:

• JAMB 1999

Use the table above to answer this question . The element that is likely to participate in covalent rather than ionic bonding is

A. Z
B. Y
C. X
D. W

Question 90:

• JAMB 2000

Which of the following statement is correct about the periodic table?

A. Elements in the same period have the same number of valency electron
B. The valence electron of the elements in the same period increase progressively across the period
C. Elements in the same group have the same number of electron shells
D. The non-metallic properties of the elements tend to decrease across each period