Which of the following statements is true? electrons have a positive charge. all shells can hold up to eight electrons. protons and neutrons are found in the nucleus. electrons and protons are found in the nucleus.

Protons and neutrons are found in the neucleus

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling

The answer is as follows in the photo