HEL How many protons and electrons are in a 64 29
Cu2+ ion?

27 protons, 29 electrons
27 protons, 31 electrons
29 protons, 27 electrons
29 protons, 31 electrons

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

here are some of the ways in which chemical and nuclear reactions differ.

explanation: