Why electrons are considered as the universal constituents of matter?

Explanation

**Step-by-Step Solution:**

1. **Definition of Electrons:**
- Electrons are subatomic particles with a negative charge. They are one of the primary constituents of atoms, along with protons and neutrons.

2. **Universal Presence:**
- Electrons are found in all types of matter. Every atom contains electrons, which orbit the nucleus (composed of protons and neutrons). This universal presence in all elements makes them fundamental to the structure of matter.

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