What could be the estimated atomic mass of Silicon? A. 26.2 amu
B. 28.1 amu
C. 29.8 amu
D. 30.1 amu

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Why is silver chloride is an ionic compound