what is valency formula?
who was the creator of periodic table?
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Valency is the combining power of an element.
The valency of an element is related to how many electrons are in the outer shell. D - if the valencies can be simplified, divide them both by the smaller of the two numbers....
Dmitri Mandeleev....
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The modern periodic table lists the elements in order of increasing atomic number (the number of protons in the nucleus of an atom).
Dmitri Mendeleev.
Eka-aluminium (Ea)
Valency: 3
Method of discovery: Probably from its spectrum
Gallium (Ga)
Valency: 3
Method of discovery: Spectroscopically
Explanation:
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