JAMB and WAEC Chemistry questions: Atomic structure and bonding

59 questions with answers and explanations. Tap an option to check yourself.

All topics Acids, bases and salts · 58 Air · 37 Atomic structure and bonding · 59 Chemical combination · 58 Chemical equilibrium · 37 Chemistry and industry · 35 Electrolysis · 41 Energy changes · 38 Environmental pollution · 32 Kinetic theory of matter and gas laws · 45 Metals and their compounds · 47 Non-metals and their compounds · 45 Organic compounds · 72 Oxidation and reduction · 41 Rates of chemical reaction · 38 Separation of mixtures and purification · 42 Solubility · 36 Water · 39

Question 1· Atomic structure and bonding· WAEC
The type of bond formed between sodium and chlorine is
Explanation and discussion
Question 2· Atomic structure and bonding· JAMB
How many neutrons are in an atom of ³⁷₁₇Cl?
Explanation and discussion
Question 3· Atomic structure and bonding· JAMB
Covalent molecular compounds usually
Explanation and discussion
Question 4· Atomic structure and bonding· JAMB
How many electrons are in a sodium ion, Na⁺? (Atomic number of Na = 11)
Explanation and discussion
Question 5· Atomic structure and bonding· JAMB
Elements in the same group of the periodic table have the same number of
Explanation and discussion
Question 6· Atomic structure and bonding· WAEC
The bond between sodium and chlorine in sodium chloride is
Explanation and discussion
Question 7· Atomic structure and bonding· WAEC
Element X is in Group II and Period 3 of the Periodic Table. X is
Explanation and discussion
Question 8· Atomic structure and bonding· JAMB
What is the mass number of the atom shown in the diagram?
Explanation and discussion
Question 9· Atomic structure and bonding· JAMB
The maximum number of electrons that the third shell (n = 3) can hold is
Explanation and discussion
Question 10· Atomic structure and bonding· WAEC
Chlorine consists of ³⁵Cl (75%) and ³⁷Cl (25%). Calculate its relative atomic mass.
Explanation and discussion
Question 11· Atomic structure and bonding· WAEC
Which of these compounds is covalent?
Explanation and discussion
Question 12· Atomic structure and bonding· WAEC
The bond formed when both shared electrons come from one atom is
Explanation and discussion
Question 13· Atomic structure and bonding· WAEC
Which pair of elements is most likely to form an ionic compound?
Explanation and discussion
Question 14· Atomic structure and bonding· JAMB
Electronegativity increases across a period mainly because
Explanation and discussion
Question 15· Atomic structure and bonding· JAMB
Rutherford's gold-foil experiment showed that the atom
Explanation and discussion
Question 16· Atomic structure and bonding· WAEC
An atom has atomic number 11 and mass number 23. The number of neutrons in it is
Explanation and discussion
Question 17· Atomic structure and bonding· JAMB
Which quantum number describes the shape of an orbital?
Explanation and discussion
Question 18· Atomic structure and bonding· JAMB
The electron was discovered by
Explanation and discussion
Question 19· Atomic structure and bonding· JAMB
Water has an unusually high boiling point for its molecular size mainly because of
Explanation and discussion
Question 20· Atomic structure and bonding· JAMB
The diagram represents an atom of
Explanation and discussion

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JAMB and WAEC Chemistry questions: Atomic structure and bonding

The type of bond formed between sodium and chlorine is

How many neutrons are in an atom of ³⁷₁₇Cl?

Covalent molecular compounds usually

How many electrons are in a sodium ion, Na⁺? (Atomic number of Na = 11)

Elements in the same group of the periodic table have the same number of

The bond between sodium and chlorine in sodium chloride is

Element X is in Group II and Period 3 of the Periodic Table. X is

What is the mass number of the atom shown in the diagram?

The maximum number of electrons that the third shell (n = 3) can hold is

Chlorine consists of ³⁵Cl (75%) and ³⁷Cl (25%). Calculate its relative atomic mass.

Which of these compounds is covalent?

The bond formed when both shared electrons come from one atom is

Which pair of elements is most likely to form an ionic compound?

Electronegativity increases across a period mainly because

Rutherford's gold-foil experiment showed that the atom

An atom has atomic number 11 and mass number 23. The number of neutrons in it is

Which quantum number describes the shape of an orbital?

The electron was discovered by

Water has an unusually high boiling point for its molecular size mainly because of

The diagram represents an atom of