Advertisements
Advertisements
प्रश्न
Match the following.
| 1. | Triads | Newlands |
| 2. | Alkali metal | Calcium |
| 3. | Law of octaves | Henry Moseley |
| 4. | Alkaline earth metal | Sodium |
| 5. | Modern Periodic Law | Dobereiner |
उत्तर
| 1. | Triads | Dobereiner |
| 2. | Alkali metal | Sodium |
| 3. | Law of octaves | Newlands |
| 4. | Alkaline earth metal | Calcium |
| 5. | Modern Periodic Law | Henry Moseley |
APPEARS IN
संबंधित प्रश्न
What were the limitations of Dobereiner’s classification?
The arrangement of elements in a group of three is known as ________.
What is Debereiner's law of triads? Explain with the help of one example of a Dobereiner's triad.
Can the following groups of elements be classified as Dobereiner's triads?
(a) Na, Si, Cl
(b) Be, Mg, Ca
Give reason for your answer.
(Atomic masses : Be 9 ; Na 23 ; Mg 24 ; Si 28 ; Cl 35.5 ; Ca 40)
In Dobereiner’s triad containing Li, Na, K, if atomic masses of Lithium & Potassium are 6.9 and 39.1, then what will be the atomic mass of Sodium?
Did Dobereiners triads also exist in the columns of Newland's Octaves? Compare and find out.
State Dobereiner’s Law of Triads with suitable examples.
Find the odd one out and give its explanation.
According to Dobereiner’s triads rule, three elements in an increasing order of atomic mass shows _______.
If Dobereiner is related with ‘law of triads’, then Newlands is related with ______.
