Most common queries about 1-20 periodic table of elements:
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Tell the general structure of the atom. explain how the properties of the 1st 20 elements of periodic table?
what are the first 20 elements on the periodic table, thanksCan you give me the neutron&electron&proton of elements 1-20 on periodic table (Hydrogen-calcium) compute?
I think it's atomic number and neutron I'm looking for please helpWho knows the first 20 periodic table elements?
Hi, I was just wondering if anyone knew the first 20 elements from the periodic table, and can you name then in order? And does anyone know the little "signs" for all of them? (Water = H2o, Oxygen = o2) Please i want to know the 1st 20 elements of the periodic table?
Chemistry as a subjec.
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