Across short period the melting and boiling point increase upto __________________?

Related Mcqs:

Mostly elements have fractional atomic masses because of______________________?

A. mass of an atom itself is in fraction B. atomic masses are average masses of isobars C. atmoic masses are average masses of isotopes proportional to their relative abundance D. atmoic masses are average masses of isotopes...

The sample of isotopes of an element which needs not to be vaporized in the vaporization chamer_________________?

A. Gas B. Liquid C. Volatile solid D. All...

Which statement is consistent with Hunds rule ?

A. Electrons fill orbitals with parallel spins until all the orbitals of the same energy are half filled then they go into sub-shells with anti-parallel (opposite) spin. B. The electrons in the same atom cannot have the same four quantum numbers C. There is maximum of two electrons is an orbital. D. None...

Which of the elements do not fall in stair case of the modern periodic table__________________?

A. Si B. As C. Te D. None of the above...

Acid present in acid rain may be_________________?

A. H2SO4 B. HNO3 C. both A and B D. none of the above...