AP BIOLOGY

Detailed explanation-1: -Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.

Detailed explanation-2: -On the atomic level, protons are positively charged and electrons are negatively charged.

Detailed explanation-3: -Protons are positively charged and are present in the nucleus. The charge of an electron is −1.6×10−19 and the charge of proton is +1.6×10−19 coulomb (C).