Hi, I am having some trouble with some of these questions, can someone please help me?
Thanks!
1. What is the difference between an element and an isotope? (2 marks)
2. Name the main particles found in the atomic nuclei of all elements, with the exception of an isotope of one particular element. Give the main characteristics of these particles and name the exceptional isotope.
Names and characteristics (4 marks) -
Exception (1 mark) -
3. State whether the first ionisation energy is endothermic or exothermic and explain your choice (3 marks).
Thanks for your time and help!