In order to become a positively charged atom, the element must lose electrons. Since electrons and protons are in the same amounts in an atom, a decrease in the number of the electrons will increase the positive charge of the atom.
For A Neutrally-charged Atom To Become A Positively-charged Atom Of The Same Element, It Must?
Lose electrons obviously so the no. Of protons would be comparatively more so the atom will develop positive charge.