Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

تمرين 20

Chemicals that have electrical charges are called (a) _____. They obey the rule that opposite charges attract and like charges repel. Although the fluid of the axon contains a number of ions, we have focused on only two, a positively charged (b) _____ ion, whose symbol is Na + , and a negatively charged (c) _____ ion.