Biology 10th Edition by Eldra Solomon,Charles Martin,Diana Martin,Linda Berg

تمرين 4

and have
A) different chemical properties because they have different atomic numbers
B) the same chemical properties because they have the same number of valence electrons
C) different chemical properties because they differ in their number of protons and electrons
D) the same chemical properties because they have the same atomic mass
E) the same chemical properties because they have the same number of protons, electrons, and neutrons