The table below gives the number of electrons, protons and neutrons in substances X, Y and Z. Study it and answers the questions that follow.
Substance | Electrons | Protons | Neutrons |
X | 10 | 10 | 10 |
Y | 10 | 8 | 10 |
Z | 8 | 8 | 8 |
- Which letter represents an ion?
- Which of the substances are isotopes? Give a reason.
- Show the electron arrangement of Y