Classification of Elements and Periodicity in Properties questions
826 published questions with worked solutions.
- The number of 4f electrons present in Ytterbium Yb(70) is
- How many unpaired electrons are present in Europium? (atomic number 63)
- The electronic configuration of gadolinium (At.no.64) is
- Shielding effect exerted by the inner electrons decreases in order of
- Ce^ +4 ion is isoelectronic with
- Contraction in atomic and ionic radii is given by
- The correct order of the ionic radii of the ions is
- Find out the smallest ion from those given below.
- With the increase in atomic numbers the atomic radii go on decreasing in case of
- The elements with electronic configuration [Rn]5f^2 6d^1 7s^2 has atomic number
- The properties of Zr and Hf are similar because
- The properties of Zr and Hf are similar because
- The outer electronic configuration of chromium is
- Which one of the following refers to configuration of transition elements?
- General electronic configuration of transition elements is
- Which of the following pair of ions are isoelectronic?
- Gd^ +3 ion is isoelectronic with
- Which one of the following has largest radii?
- Element with following accepted electronic configuration [Rn]5f^2 6d^1 7s^2 has atomic number equal to
- The ground state electronic configuration of chromium is _____
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