Describe how protons, neutrons, and electrons each affect the charge and mass of an atom.

The protons have positive charge and electrons have negative charge. For an atom, the mass of protons and neutrons are almost the same. And electrons mass can be ignored.

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.

Higher temperature = molecules move around faster. and vice versa.