P block elemenn, chemistry, Chemistry

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Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe

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I think it''s funny how you guys say that you''re experts, but on the periodic table on the site you have the noble gases listed as inert elements. If whoever created that page act

The energy for the first excited state of hydrogen atom, The value of the e...

The value of the energy for the first excited state of hydrogen atom will be: (1) - 13.6 ev                        (2)- 3.40 eV        (3) -1.51eV

F block elements, why f elememnts kept sepertaly in periodic table

why f elememnts kept sepertaly in periodic table

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