CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -A. Protons – Protons carry a single positive charge that have a mass of one approximately one atomic mass unit. The atomic number is equal to the number of protons found in an atom.

Detailed explanation-2: -Protons have a positive charge. Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Neutrons have no charge.

Detailed explanation-3: -As summarized in Table 2.1, protons are positively charged, neutrons are uncharged and electrons are negatively charged. The negative charge of one electron balances the positive charge of one proton. Both protons and neutrons have a mass of 1, while electrons have almost no mass.