✓ Board-verified↻ asked 3×
Science · 2022 · 3 marks
CBSE 2022 · Region 3 · Set 1 · Q10
In the following table, some elements have been arranged in a certain pattern : sa (do) re (re) ga (mi) ma (fa) pa (so) da (la) ni (ti) H Li Be B C N O F Na Mg Al Si P S Cl K Ca Cr Ti Mn Fe Co and Ni Cu Zn Y In As Se Br Rb Sr Ce and La Zr - -
Identify the periodic law with which the given table is associated. List two important features and two anomalies of the above periodic law.
| sa (do) | re (re) | ga (mi) | ma (fa) | pa (so) | da (la) | ni (ti) |
| H | Li | Be | B | C | N | O |
| F | Na | Mg | Al | Si | P | S |
| Cl | K | Ca | Cr | Ti | Mn | Fe |
| Co and Ni | Cu | Zn | Y | In | As | Se |
| Br | Rb | Sr | Ce and La | Zr | - | - |
Marking-scheme solution
Newland's Law of Octaves
Important features :
1. The elements were arranged in the order of their increasing atomic mass.
2. Every eighth element has properties similar to the first element.
Anomalies :
1. It was assumed that only $\displaystyle 56$ elements existed in nature and new elements would not be discovered in future.
2. Unlike elements were put in the same slot/note.
More from Periodic Classification of Elements
- Name the elements whose compounds formed the basis of classification in Mendeleev's periodic table. Why did…2022 · asked 3×
- State Newland Law of Octaves. 1+1+(1)/(2)+1 (1)/(2)=3 With an example, explain Dobereiner's Triads. List one…2022 · asked 2×
- In the modern periodic table, compare the tendency of the elements to lose electrons while moving (i) down a…2022
- An element 'M' has 25\% of the electrons filled in the third shell as in the second shell. The element ' M '…2025
- State the criteria used by Mendeleev for creating his Periodic Table. Compare the position of isotopes of…2022
- Give the criteria on the basis of which elements are placed (i) in a group and (ii) in a period in the modern…2022
- State Modern Periodic Law. How many rows and columns are there in the Modern Periodic Table?2022
- State Newland Law of Octaves. 1+1+(1)/(2)+(1)/(2)=3 With an example, explain Dobereiner's Triads. List one…2022
CBSE Class 10 Science past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.