Work out the number of electrons, protons and neutrons in Silicon 29 isotope.
First look at the periodic table to find the atomic number - 14.Then if it is a stable atom with no valency, the electron number will be equal to the proton number - 14.To work out the number of neutrons, subtract the number of protons (the atomic number) from the mass number of the isotope - 29-14=15
JA
Related Chemistry A Level answers
All answers ▸What is Mass Spectrometry?
Calculate Gibbs free energy when S = 131 J mol-1 and H = 155 kJ mol-1 at 25 C, stating whether or not the reaction is feasable.
Use the concept of electronegativity to justify why the acid strengths of ethanedioic acid and ethanoic acid are different. (6 marks)
What is the difference in kinetics between a 0th, 1st and 2nd order reaction?