✅ Correct Answer: H2
Source: This question is taken from the Everyday Science
✅ Correct Answer: Isotopes
✅ Correct Answer: Neon and argon
✅ Correct Answer: 16
✅ Correct Answer: Increases by 1
✅ Correct Answer: Gram atomic mass
✅ Correct Answer: Zinc sulphide
✅ Correct Answer: USA
✅ Correct Answer: 23