Questions tagged 'Periodic Table'
14 questions
Is the following true or false every element in the periodic table follows the aufbau principle
Is every element in the periodic table governed by the Aufbau principle? Explain your reasoning. Why was Washington, D.C., a dangerous place to live and work even after the Civil War? A. There...
Place the ions in order of decreasing size. Te2-, I-, Cs+, Ba2+, La3+?
I would like to clarify the order of ion sizes for the following ions: Te²⁻, I⁻, Cs⁺, Ba²⁺, and La³⁺. I initially proposed the following order from largest to smallest: Te²⁻ > I⁻ > Cs⁺ > Ba²⁺...
In what group would you place element 117, “topaline” according to the Star Trek version of the periodic table?
According to the "Fifth Interstellar Geophysical Conference Standard" version of the periodic table in the Star Trek universe, there are 140 known elements. In which group of the periodic table would...
To what family of the periodic table does this new element probably belong?
A space probe has identified a new element from a sample collected from an asteroid. The successive ionization energies (in attojoules per atom) for this new element are as follows: i1 0.507 i2 1.017...