Explain how a neutral atom can become
positively or negatively charged.

Neutral atoms can be turned into positively charged ions by removing one or more electrons. ... Atoms that gain extra electrons become negatively charged. A neutral chlorine atom, for example, contains 17 protons and 17 electrons. By adding one more electron we get a negatively charged Cl- ion with a net charge of -1.

Explanation:

it's filtration, but this is an assumption so my apologies if i got this