- Isotopic Notation: ²₁H
- Atomic Number: 1
- # of Protons: 1
- # of Neutrons: 1
- Mass Number: 2
- Stability: Stable
- Ratio of p⁺ to n⁰: 1:1
- Isotopic Notation: ³₁H
- Atomic Number: 1
- # of Protons: 1
- # of Neutrons: 2
- Mass Number: 3
- Stability: Unstable
- Ratio of p⁺ to n⁰: 1:2
- Isotopic Notation: ⁵₂He
- Atomic Number: 2
- # of Protons: 2
- # of Neutrons: 3
- Mass Number: 5
- Stability: Unstable
- Ratio of p⁺ to n⁰: 2:3
- Isotopic Notation: ⁷₃Li
- Atomic Number: 3
- # of Protons: 3
- # of Neutrons: 4
- Mass Number: 7
- Stability: Stable
- Ratio of p⁺ to n⁰: 3:4
- Isotopic Notation: ¹⁶₈O
- Atomic Number: 8
- # of Protons: 8
- # of Neutrons: 8
- Mass Number: 16
- Stability: Stable
- Ratio of p⁺ to n⁰: 1:1
- Isotopic Notation: ¹⁷₈O
- Atomic Number: 8
- # of Protons: 8
- # of Neutrons: 9
- Mass Number: 17
- Stability: Stable
- Ratio of p⁺ to n⁰: 8:9
- Isotopic Notation: ¹⁸₈O
- Atomic Number: 8
- # of Protons: 8
- # of Neutrons: 10
- Mass Number: 18
- Stability: Stable
- Ratio of p⁺ to n⁰: 4:5
- Isotopic Notation: ²⁰₁₀Ne
- Atomic Number: 10
- # of Protons: 10
- # of Neutrons: 10
- Mass Number: 20
- Stability: Stable
- Ratio of p⁺ to n⁰: 1:1
- Isotopic Notation: ²³₁₀Ne
- Atomic Number: 10
- # of Protons: 10
- # of Neutrons: 13
- Mass Number: 23
- Stability: Unstable
- Ratio of p⁺ to n⁰: 10:13
Parent Tip: Review the logic above to help your child master the concept of isotopic notation worksheet.