Modern Periodic Table Is Based On The Atomic Number Of The Elements.The Experiment Which Proved The Significance Of The Atomic Number Was
5 Years Ago
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- Some Basic Concepts in Chemistry
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- Hydrogen
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Popular Questions
- Which of the following is not a periodic property?
- Elements after atomic number 103 have not been discovered till now. If an element with atomic number 106 were ever discovered whic..
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- Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements O, S,..
- The electronic configuration of an element is 1s2, 2s22p6,3s23p3. What is the atomic number of the element which is just above ele..
- The element with atomic number 36 belongs to______block in the periodic table.
- Differentiating electron in inner transition elements enters the_____ orbital.
- Which of the following pairs has both members from the same period of the periodic table
- The most important active step in the development of periodic table was taken by
- the first ionization potential of Na is 5.1 ev. the value of electron
- the charge/size ratio of a cation determines its polarizing power
- The heaviest atom amongst the following is
- Aluminium is diagonally related to (in periodic table)
- If an atom has electronic configuration
- Which of the following is the atomic number of a metal
- The electronic configuration (1s)^2, (2s)^2, (2p)^6, (3s)^2, (3p)^6, (3d)^9 represents a
- Beryllium shows diagonal relationship with
- The formation of the oxide ion (O)^-2(g), from oxygen atom requires first an exothermic, and then an endothermic step as shown bel..
- beryllium and aluminium exhibit many properties which are similar.
- Which of the following elements are analogous to the lanthanides
- Element of atomic number 6 is placed in
- Which of the following statement is not correct regarding hydrogen atom
- who is called the father of chemistry
- The tenth elements in the periodic table resembles with the
- Which of the following is metalloid
- The elements having the electronic configuration, [Kr]
- The element with configuration
- In the periodic table going down in Fluorine group
- The electronic configuration of an element is (1s)^2 (2s)^2 (2p)^6 (3s)^2 (3p)^3. What is the atomic number of the element, which ..
- The long form of periodic table has
- Which pair has both members from the same period of periodic table?
- The elements with atomic number 10,18,36,54, and 86 are all
- Which of the following element is metalloid?
- Which of the following have the largest ionic size?
- On moving from left to right across a period in the table the metallic character
- the ionic radii (in A) of N^3 - O^2 - and f- are respectively
- Which among the following has the highest ionisation potential?
- In the periodic table metals usually used as catalyst belong to
- Smallest among these species is
- which of the following has highest ionic radius
