Newlands Law of Octaves

Q.

What is the Lothar Meyer curve and how does it establish the idea of periodicity of elements?

Q. Newland’s Law of Octaves worked only for?

1. Heavier elements
2. Lighter elements
3. Both (a) and (b)
4. None of above

Q. According to Newland’s law of octaves, which of the following pairs of elements have similar characteristics?

1. Na and Li
2. Mg and Na
3. Li and Be
4. Li and B

Q. In 1865, an English chemist John Newlands arranged the elements in the increasing order of their ________ to explain their chemical properties.

1. Atomic number
2. Atomic volume
3. Valence electron
4. Atomic weight

Q.

Which of the sets of elements follows Newland’s octave rule:-

A)Be, Mg, Ca

B)Na, K, Rb

C)F, Cl, Br

D)B, Al, Ga

and how?

Q. Atomic number is the base of:

1. a, b, d
2. c, e
3. a, d
4. a, c, e

Q. Lothar Meyer obtained the curve for the known elements by plotting their atomic volumes against:

1. atomic numbers
2. ionization energies
3. atomic masses
4. densities

Q. The periodic table of today owes its development to two chemists namely:

1. Rutherford and Moseley
2. de Broglie and Neil Bohr
3. Alexander Newlands and Dobereiner
4. Dmitri Mendeleev and Lothar Meyer

Q.

Define and explain Newlands Law of octaves?

Q. According to Newland’s law of octaves, which of the following pairs of elements have similar characteristics?

1. Li and Be
2. Na and Li
3. Li and B
4. Mg and Na