Answer to Question 1
A positive ion has lost one or more electrons, leaving the positively charged protons in the nucleus without a balancing negative charge on the particle, resulting in a positively charged ion. A negative ion has gained one or more electrons, adding more negative charge to the orbital shells, resulting in a negatively charged ion.
Answer to Question 2
An ion is an atom that has become positively charged or negatively charged by losing one or more valence electrons or gaining one or more valence electrons, respectively.
Meditation Reduces Negative Emotions
Negative reading oxygen sensor voltage can be caused by several problems.
A Negative Afterimage
Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ...
The peptidoglycan layer of Gram-positive bacteria
Control of Homeostasis: Negative Feedback