Here's why:
* Atoms are made of protons, neutrons, and electrons.
* Protons have a positive charge, electrons have a negative charge, and neutrons have no charge.
* A neutral atom has an equal number of protons and electrons.
Silicon has 14 protons and 14 electrons, making it electrically neutral.
However, silicon can gain or lose electrons to form ions which would then have a charge:
* Silicon can lose electrons to become a positively charged ion (cation). This is typical in silicon dioxide (SiO2), where silicon has a +4 charge.
* Silicon can gain electrons to become a negatively charged ion (anion). This is less common, but possible in certain compounds.
In summary, silicon itself is neutral, but its compounds can have varying charges depending on the chemical bonds involved.