________ is made by mixing iron with carbon and metals like chromium, nickel and manganese.
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Fe has 26 protons in its nucleus. What are the number of electrons in Fe2+ (II) ion?
Atomic number of which of the following elements is greater than that of Chlorine
The atoms of Germanium, Arsenic, Selenium and Bromine contain ...... shells.
A change in which one or more new substances are formed is called _________.
What is the name of the acid in grapes?
Atomic number of which of the following elements is greater than that of Zinc
Atomic bomb is based on which of the following principle?