Periodic Table of Elements Practice Questions
SPM (Malaysia) · SPM Chemistry · 139 free MCQs with instant results and detailed explanations.
139
Total
40
Easy
70
Medium
29
Hard
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Sample Questions from Periodic Table of Elements
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Q1
Easy
Which of the following elements is classified as a noble gas?
A.
Neon
B.
Chlorine
C.
Sodium
D.
Oxygen
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Correct Answer: A
Neon is classified as a noble gas because it is in group 18 of the periodic table, characterized by having a full valence shell, making it chemically inert under standard conditions.
Q2
Easy
Which group of the periodic table containsalkali metals?
A.
Group 1
B.
Group 2
C.
Group 17
D.
Group 18
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Correct Answer: A
Group 1 of the periodic table contains the alkali metals, which include lithium, sodium, and potassium. These metals are known for their high reactivity, especially with water.
Q3
Easy
Which of the following elements is a noble gas?
A.
Neon
B.
Chlorine
C.
Sodium
D.
Bromine
Show Answer & Explanation
Correct Answer: A
Neon is a noble gas, which is characterized by its lack of reactivity due to a complete valence electron shell.
Q4
Medium
What is the atomic number of the element with the symbol 'Ag'?
A.
47
B.
35
C.
79
D.
26
Show Answer & Explanation
Correct Answer: A
The symbol 'Ag' stands for silver, which has the atomic number 47, indicating it has 47 protons in its nucleus.
Q5
Medium
Which of the following pairs of elements can form an ionic bond?
A.
Sodium and Chlorine
B.
Hydrogen and Helium
C.
Carbon and Oxygen
D.
Boron and Silicon
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Correct Answer: A
Sodium has one electron in its outer shell and chlorine requires one electron to complete its shell, allowing them to form an ionic bond.
Q6
Medium
Which element is a metalloid that is commonly used in semiconductors?
A.
Silicon
B.
Aluminum
C.
Copper
D.
Bromine
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Correct Answer: A
Silicon is a metalloid widely used in the electronics industry for semiconductors due to its intermediate electrical conductivity.
Q7
Medium
Which of the following elements would you expect to have similar chemical properties to oxygen?
A.
Sulfur
B.
Argon
C.
Sodium
D.
Calcium
Show Answer & Explanation
Correct Answer: A
Sulfur is in the same group (16) as oxygen, meaning they share similar chemical properties due to their electron configurations.
Q8
Hard
Which of the following statements correctly describes the trend in ionization energy across Period 3 of the periodic table?
A.
Ionization energy decreases from sodium to chlorine.
B.
Ionization energy increases from sodium to chlorine.
C.
Ionization energy remains constant across Period 3.
D.
Ionization energy decreases from sodium to argon.
Show Answer & Explanation
Correct Answer: B
Ionization energy increases across a period due to increasing nuclear charge, which attracts electrons more strongly, making them harder to remove.
Q9
Hard
An element in Period 3 has a higher electronegativity than phosphorus but lower than sulfur. Which element could it be?
A.
Silicon
B.
Chlorine
C.
Argon
D.
Magnesium
Show Answer & Explanation
Correct Answer: A
Silicon has a higher electronegativity than phosphorus (1.90 vs. 2.19) and is lower than sulfur (2.58), making it the correct choice.
Q10
Hard
Which of the following elements has the highest electronegativity value and is most likely to form strong ionic bonds?
A.
Fluorine (F)
B.
Chlorine (Cl)
C.
Oxygen (O)
D.
Nitrogen (N)
Show Answer & Explanation
Correct Answer: A
Fluorine has the highest electronegativity value on the Pauling scale, making it the most electronegative element. This strong electronegativity allows fluorine to attract electrons effectively, leading to the formation of strong ionic bonds with metals.
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Periodic Table of Elements — SPM (Malaysia) SPM Chemistry Practice Questions Online
This page contains 139 practice MCQs for the chapter Periodic Table of Elements in SPM (Malaysia) SPM Chemistry. The questions are organized by difficulty — 40 easy, 70 medium, 29 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit.