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why f-block elements are called inner transition elements?
difference between lanthanoids and actanoids
Q. Describe about Electron Configurations? As you will study the number and arrangement of electrons around the nucleus of an atom determines its chemical properties. Consequen
Q. Llimitations of werners theory? There were inherent limitations with such a simple approach. For example, the following experimental facts cannot be explained on the basis o
Need to know about atomic mass of clorine
Q. Illustrate Ionic Bonds or electrovalent bond? Ans. An ionic bond (also called an electrovalent bond) is the attraction between oppositely charged ions. Elements from o
why lanthanide series is called lanthanide?
a sophisticated ultra/visible/near-IR instrument has a wavelenght range of 185 TO 3000 nm.What are its Wave number and frequency ranges ?
do bases react with lab glassware?
How many gaseous elements are there in the s block of modern periodic table? What are they??
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