in mendeleev periodic table gaps were left for the elements to be discovered later

get in mendeleev periodic table gaps were left for the elements to be discovered later from screen.

In Mendeleev's periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?

Click here👆to get an answer to your question ✍️ In Mendeleev's periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?

Question

In Mendeleev's periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?

A

Germanium

B

Chlorine

C

Oxygen

D

Silicon

Medium Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is A)

Chlorine, oxygen and silicon were included in Mendeleev's periodic table. Germanium was discovered later which fit into the empty spaces left by Mendeleev and matched to the expected properties. 

Solve any question of Classification Of Elements And Periodicity In Properties with:-

Patterns of problems

>

Was this answer helpful?

66 3

स्रोत : www.toppr.com

In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later

In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later

Byju's Answer Standard X Chemistry

Merits of Mendeleev's Periodic Table

In Mendeleev’... Question

In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later

A Germanium B Chlorine C Oxygen D Silicon Open in App Solution

The correct option is A

Germanium

The explanation for the correct answer:Option (A): GermaniumMendeleev's Periodic Table:

In Mendeleev's periodic table the elements were arranged on the basis of their fundamental property, the atomic mass, and also on the similarity of chemical properties.

Therefore were 63

elements known at that time.

63

elements were arranged in the increasing order of their atomic masses and found that the elements with similar chemical properties occur at regular intervals.

The periodic law states that the properties of elements are a periodic function of their atomic masses.

Predicted Elements

The periodic table predicted the existence of those elements which were yet to be discovered.

These pre-predicted elements were named Eka-boron, Eka-aluminium, and Eka-silicon.

After their discovery, they were named Scandium

(Sc) , Gallium (Ga) , and Germanium (Ge) , respectively.

Properties of Eka-aluminium and GalliumPropertyEka-aluminiumGallium

1. Atomic mass 68 69.7 2. Formula of Oxide E2O3 Ga2O3 3. Formula of Chloride ECl3 GaCl3

The explanation for the incorrect answer:-Option (B): Chlorine

Chlorine was already included in Mendeleev's periodic table.

Hence it is the incorrect option.

Option (C): Oxygen

Oxygen also was already included in Mendeleev's periodic table.

Hence it is the incorrect option.

Option (D): Silicon

Germanium was discovered later, which matched the properties set by Mendeleev and was placed in his periodic table.

However, Silicon was already present in the periodic table.

hence it is the incorrect option.

Hence, the correct answer is option (A).

Suggest Corrections 0

SIMILAR QUESTIONS

Q.

The three elements predicted by Mendeleev from the gaps in his periodic table were known as eka-boron, eka-aluminium and eka-silicon. What names were given to these elements when they were discovered later on?

Q. In Mendeleev's periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?Q. Identify missing elements A, B, and C in Mendeleev's periodic table that were discovered later along with their names used previously by Mendeleev. ​

Element Name by Mendeleev

Aa Bb Cc RELATED VIDEOS

Cancer CHEMISTRY Watch in App EXPLORE MORE

Merits of Mendeleev's Periodic Table

Standard X Chemistry

स्रोत : byjus.com

[Solved] In Mendeleev’s periodic table, gaps were left for the

The Correct Answer is Option 2 i.e Germanium. Mendeleev’s law: The law states that the physical and chemical properties of the elements are the pe

Home General Science Chemistry Classification of Elements and Periodicity in Properties

Question

Download Solution PDF

In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?

Silicon Germanium Oxygen Chlorine

Answer (Detailed Solution Below)

Option 2 : Germanium

India's Super Teachers for all govt. exams Under One Roof

FREE

Demo Classes Available*

Enroll For Free Now

Detailed Solution

Download Solution PDF

The Correct Answer is Option 2 i.e Germanium.

Mendeleev’s law:

The law states that the physical and chemical properties of the elements are the periodic function of their atomic masses.

Silicon, Oxygen, and Chlorine are included in the Mendeleev's periodic table.

He left gaps for the elements to be discovered later to fit in the periodic table.

Germanium was such an element that found a place in the periodic table later. Germanium(Ge):

The atomic number is 32.

Germanium is most widely used as a Semiconductor.

Germanium is used in transistors and in integrated circuits.

Germanium is also used as an alloying agent.

Eka-silicon is known as Germanium.

Silicon (Si):

The atomic number is 14.

It is widely used as a semiconductor.

It is the second most abundant element in the crust.

Oxygen (O):

The atomic number is 8.

It makes up nearly 21 % of the earth's atmosphere.

It is a colorless and odorless gas.

Chlorine (Cl):

The atomic number is 17.

It belongs to the group of halogens.

It is a yellow-green gas.

It is used as a disinfectant and to treat drinking water.

Download Solution PDF

Share on Whatsapp

Ace your Chemistry preparations for Classification of Elements and Periodicity in Properties with us and master General Science for your exams. Learn today!

India’s #1 Learning Platform

Start Complete Exam Preparation

Daily Live MasterClasses

Practice Question Bank

Mock Tests & Quizzes

Get Started for Free

Download App

Trusted by 3.8 Crore+ Students

‹‹ Previous Ques Next Ques ››

More Classification of Elements and Periodicity in Properties Questions

Q1. Some metal oxides react with acid as well as a base to produce salt and water. They are known as amphoteric oxides. Examples of amphoteric oxides areQ2. Choose the incorrect statement -Q3. Find out the odd one from the following.Q4. The maximum number of electrons that can be accommodated in a shell depends on the formula ____.Q5. In 1955, which synthetic element is provisionally named Mendelevium in honor of Dmitri Mendeleev, who created one of the first periodic tables?Q6. Identify the correct chemical formula of chloroform.Q7. Common name of the compound CaOCl2 is ________.Q8. What is the usual property of oxides of Group III and IV?Q9. Which of the following is the electronic configuration of a metallic element?Q10. Which colour does silver chloride turn in sunlight?

More Chemistry Questions

Q1. Atomic Number 117 belongs to which of the following group in modern periodic table?Q2. Which of the following statements about diamond and graphite is true?Q3. Detect the odd one.Q4. Why does dry HCI gas not change the colour of dry litmus paper?Q5. The odour of acetic acid resembles that ofQ6. You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. Which of them will turn red litmus to blue?Q7. Which acid is described as HOOCCOOH?Q8. Acids react with metal carbonates to liberate ______ gas.Q9. Some metal oxides react with acid as well as a base to produce salt and water. They are known as amphoteric oxides. Examples of amphoteric oxides areQ10. A form of matter has no fixed shape but it has a fixed volume. An example of this form of matter is

स्रोत : testbook.com