What is an isotope?
Isotopes are atoms of an element with different numbers of neutrons. They have the same proton number, but different mass numbers. They have the same chemical properties, due to having the same number of electrons in their outer shell, but differ in their physical properties.
BF
Related Chemistry GCSE answers
All answers ▸How might I go about balancing chemical equations?
What is the difference between ionic and covalent bonding?
How does Le Chatelier's principle work when the pressure is changed?
Calculate the pH of the buffer solution resulting from mixing 250 cm^3 of 0.3 moldm^-3 ethanoic acid with 250cm^3 of 0.2 moldm^-3 sodium hydroxide. The Ka of ethanoic acid is 1.8 x 10^-5.