Q. Atoms of different elements have:
Answer: different atomic number and different number of valence electrons
Notes: Each element’s atoms have a different number of protons, neutrons, and electrons, i.e. they have different atomic numbers, difference in valence electrons and other properties. Their reactivity also varies because of the number and activeness of the electrons in the atom.

This Question is Also Available in:

हिन्दी
Question Source: 📚This question has been sourced from GKToday's "40000+ GK / General Studies MCQs for SSC & State PCS Exams" App Exclusive Course in GKToday Android Application which provides more than 40K General Knowledge and General Studies questions with explanations asked in all Competitive Exams of India. Download the app here.
📌 Question Number: 58 in Chemistry-3-Elements in the above course in App.