Write the ion symbol for an atom with the given number of protons and electrons. a. 35 protons and 36 electrons

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

it's all four options.