GC Periodic Classification
Which alkali metals has lowest melting point
Which one of the following alkali metals has lowest melting point?
- Sodium
- Potassium
- Rubidium
- Caesium
Which does not increase while moving down the group
Which one of the following does not increase while moving down the group of the periodic table?
- Atomic radius
- Metallic character
- Valence
- Number of shells in an element
Arrange in the order of their increasing non-metallic character
Arrange the following elements in the order of their increasing nonmetallic character
Li, O, C, Be, F
- F < O < C < Be < Li
- Li < Be < C < O < F
- F < O < C < Be < Li
- F < O < Be < C < Li
Arrange in the order of their decreasing metallic character
Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al
- Cl > Si > Al > Mg > Na
- Na > Mg > Al > Si > Cl
- Na > Al > Mg > Cl > Si
- Al > Na> Si > Ca > Mg
Which gives the correct increasing order of the atomic radii of O, F and N
Which of the following gives the correct increasing order of the atomic radii of O, F and N?
- O, F, N
- N, F, O
- O, N, F
- F, O, N
Which elements exhibit maximum number of valence electrons
Which one of the following elements exhibit maximum number of valence electrons?
- Na
- Al
- Si
- P
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?
- A and B
- B and D
- A and C
- D and E
According to Mendeleev's Periodic Law, the elements were arranged
According to Mendeleev's Periodic Law, the elements were arranged in the periodic table in the order of
- increasing atomic number
- decreasing atomic number
- increasing atomic masses
- decreasing atomic masses
Upto which element, the Law of Octaves was found to be applicable
Upto which element, the Law of Octaves was found to be applicable
- Oxygen
- Calcium
- Cobalt
- Potassium