Static electricity Theory

The objects that surround us, as well as living organisms, are composed of chemical elements such as carbon, hydrogen, oxygen and nitrogen, etc.
Each atom of a chemical element consists of a nucleus around which electrons, which are negatively charged, orbit. The nucleus consists of protons that are positively charged and neutrons that are electrically neutral.

An uncharged object can become electrically charged, by electron transfer, through friction with another object, or by contact with an electrified object. It can, also, be charged by induction, that is, to approach an electrically charged object, so it causes a separation of its positive from negative charges.

In static electricity experiments electrically charged objects attract or repel each other. Likely charged objects repel each other, while oppositely charged objects repel each other.