What principles or values are violated in the following electronic configuration? i) Boron : 1s25 ii) Nitrogen: 1s 2s 2px 2p. iii) Beryllium : 15 2p3 Write the correct configuration for each of the element​

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

Is this a single replacement reaction or there is no

How many atoms are there in 5.70 mol of mg