Predict the ground-state electron configuration of the following ions. write your answers in abbreviated form, that is, beginning with a noble gas in brackets.
a). cr2+
b.)cu2+
c.)co3+

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

What are the first three quantum numbers for the electrons located in subshell 2s?

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?