Mendeleev's Periodic Law

Q.

The drawbacks of Mendeleev's Periodic Table are:

1. Position of Hydrogen was unclear

2. Position of Lanthanides and Actinides

3. Position of Isotopes

4. Anomalous positions of some elements

Q.

Mendeleev's periodic law is based on

1. Atomic Number

2. No of e^-

3. Mass Number

4. Atomic mass

Q. According to Mendeleev's Periodic Law, "The physical and chemical properties of elements are the periodic function of their atomic ".

1. number
2. masses
3. structures
4. models

Q. Statement 1: Mendeleev's periodic law states that the properties of elements are the periodic function of their atomic mass.

Statement 2: The modern periodic law states that the properties of elements are the periodic function of their atomic number.

1. Both statement 1 and statement 2 are true.
2. Both statement 1 and statement 2 are false.
3. Statement 1 is false and statement 2 is true.
4. Statement 1 is true but statement 2 is false.

Q. According to Mendeleev’s periodic law, the properties of the elements are the periodic function of their .

1. atomic masses
2. atomic numbers
3. atomic densities
4. atomic volumes

Q.

According to Mendeleev’s Periodic Law, the properties of elements are the periodic function of their ___.

1. atomic masses

2. atomic density

3. atomic volume

4. atomic numbers

Q.

Mendeleev's Periodic law is based on

1. Atomic Number

2. No of e^-

3. Mass Number

4. Atomic mass

Q.

In modern terminology, Eka - Silicon is called ______

1. Phosphorous

2. Germanium

3. Carbon

4. Aluminium

Q.

The drawbacks of Mendeleev's Periodic Table are:

1. Position of Hydrogen was unclear

2. Position of Lanthanides and Actinides

3. Position of Isotopes

4. Anomalous positions of some elements

Q. In modern terminology, Eka - Silicon is called

1. Phosphorous
2. Carbon
3. Germanium
4. Aluminium