TestUstad

Free Blocks of the Periodic Table MCQs with Answers

13 Blocks of the Periodic Table MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.

Electron configurations divide elements into s, p, d and f blocks according to the subshell receiving the last electron. Work includes the positions, valence-shell configurations and general properties of s-block and p-block elements, along with periodic trends in atomic size, ionisation energy, electron affinity and electronegativity.

Last updated

13 questions

1. The block of the periodic table to which an element belongs is decided by

Very hard
  • A. the number of shells it has
  • B. its atomic mass
  • C. the subshell that receives the last electron added
  • D. whether it is a metal or a non metal

Explanation: Elements are assigned to the s, p, d or f block according to the subshell into which the differentiating electron enters, so groups I and…

Read the full explanation →
Correct answer: the subshell that receives the last electron added

2. An element with the electronic configuration 1s2 2s2 2p6 3s2 3p4 belongs to

  • A. group VI of the p block, period 3
  • B. group IV of the p block, period 3
  • C. group II of the s block, period 3
  • D. group VI of the d block, period 4

Explanation: The outermost shell is the third, giving period 3, and it contains six electrons in total across 3s and 3p, giving group VI, while the…

Read the full explanation →
Correct answer: group VI of the p block, period 3

3. Which group contains elements that exist as monoatomic molecule?

  • A. 1
  • B. 2
  • C. 14
  • D. 18

Explanation: Group 18 elements have completely filled valence shells, and their atoms exist independently rather than forming ordinary diatomic or…

Read the full explanation →
Correct answer: 18

4. Which one of the following is not an alkali metal ?

  • A. Francium
  • B. Caesium
  • C. Rubidium
  • D. Radium

Explanation: Alkali metals are the Group 1 elements, including francium, caesium and rubidium, each with one valence electron.

Read the full explanation →
Correct answer: Radium

5. Modern periodic table has been divided in ___________ blocks?

  • A. 2
  • B. 4
  • C. 8
  • D. 7

Explanation: The modern periodic table is divided into s, p, d, and f blocks according to the subshell receiving the differentiating electron, giving…

Read the full explanation →
Correct answer: 4

6. The location of transition elements is in between__________________?

  • A. lanthanides & actinides
  • B. s and p block elements
  • C. chalcogens and halogens
  • D. d and f block elements

Explanation: The d-block transition elements are positioned between the s-block elements on the left and the p-block elements on the right of the…

Read the full explanation →
Correct answer: s and p block elements

7. The location of transition elements is in between:

  • A. Lanthanides and actinides.
  • B. s and p block elements.
  • C. Chalcogens and halogens
  • D. d and f block elements.

Explanation: Transition element are those elements which lie between s and p-block elements and their properties are also between s and p-block elements.

Read the full explanation →
Correct answer: s and p block elements.

8. Which one is a s block element?

  • A. B
  • B. K
  • C. Al
  • D. Cu

Explanation: s-block comprises 14 elements namely hydrogen (H), lithium (Li), helium (He), sodium (Na), beryllium (Be), potassium (K), magnesium (Mg)…

Read the full explanation →
Correct answer: K

9. The alkali metals group lies in _.

  • A. d-block
  • B. s-block
  • C. f-block
  • D. p-block

Explanation: The s-block in the periodic table of elements occupies the alkali metals and alkaline earth metals, also known as groups 1 and 2.

Read the full explanation →
Correct answer: s-block

10. The elements of lllA to VlllA subgroups except He are known as _ block elements.

  • A. Q
  • B. S
  • C. P
  • D. None of these

Explanation: The p-block is on the right side of the standard periodic table and encompasses elements in groups 13 to 18.

Read the full explanation →
Correct answer: P

11. The outer electronic configuration of an element "X"bis ns2 np2. It belongs to which group of periodic table:

  • A. 2nd group
  • B. 4th group
  • C. 3rd group
  • D. 5th group

Explanation: The outer electronic configuration of element "X" is ns2 np2, indicating that it has 2 electrons in the s subshell and 2 electrons in the…

Read the full explanation →
Correct answer: 4th group

12. A group of scientists discovered a new element that gives the properties of inert gases they should palace the new element in the periodic table with the elements of:

  • A. s-block
  • B. d-block
  • C. f-block
  • D. p-block

Explanation: In the periodic table, elements with similar properties are grouped in blocks based on their electronic configurations.

Read the full explanation →
Correct answer: p-block

13. Which electronic sub-shell do the lanthanides have incompletely filled?

  • A. 3f
  • B. 4f
  • C. 5f
  • D. 6f

Explanation: The lanthanides are characterized by their incompletely filled 4f sub-shells.

Read the full explanation →
Correct answer: 4f
Start Free Blocks of the Periodic Table Practice MCQs Test

Blocks of the Periodic Table MCQs: common questions

Are these Blocks of the Periodic Table MCQs free?

Yes. All Blocks of the Periodic Table MCQs from Chemistry are free on TestUstad, with unlimited attempts and no account needed. Nothing on this page is a sample or a trial.

How many Blocks of the Periodic Table MCQs are on this page?

There are 13 Blocks of the Periodic Table MCQs in the Chemistry bank, shown 20 to a page with the correct answer and an explanation on each.

Does every Blocks of the Periodic Table MCQ have an explanation?

Yes. Each Blocks of the Periodic Table question shows the correct option and a written explanation of why it is correct, so a wrong answer teaches you something rather than just being marked wrong.

Can I take a timed Blocks of the Periodic Table test?

Yes. The practice button on this page starts a free Blocks of the Periodic Table test drawn from the Chemistry bank. It marks each answer instantly, gives you a score at the end, and can be retaken as many times as you like.