Write the electron configuration for the following elements.
K=
Co =
Hg =
Se=
Lithium isotope ratios are important to medicine, geology, astrophysics, and nuclear chemistry. Measurements of the 6Li/7Li ratio in a Standard Reference Material are given here. Do the two methods give statistically equivalent results
Write down the full electronic configurations for the ions
(a)Os2+
(b) At–.