Consider the following statement: "Atomic number of an element is a more fundamental property than its atomic mass." Who among the following scientists has made the above statement?

Which one of the following is the most fundamental characteristic of an element ?

Consider the following statements: Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors. Statement II: Some rare earth elements have phos…

Consider the following statements with respect to noble metals : 1. Noble metals are found in pure form in nature. 2. Uranium and lead are examples of noble metal. Which of the above statements is ar…

Identify the correct pair of elements among the following which are liquid at room temperature and standard pressure.

Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg?