What is an isotope?
Atoms of the same element with different numbers of neutrons
BS
Related Chemistry GCSE answers
All answers ▸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.
Draw the atomic structure of Magnesium
What is the difference between an atom and an ion? Explain the difference between an Na (sodium) atom and Na+ ion.
Why are Alkali metals so reactive?