Atomic Structure 1

Question 1

State two features of the current model that are not shown in the
Rutherford model.

Answer 1

1. neutrons AND protons
2. electrons in different orbitals

Question 2

molecule X is ionised using electrospray
ionisation.
What is the equation for this ionisation?
include state symbols

Answer 2

X(g) + H+ –> XH+(g)

Question 3

Define the mass number of an atom

Answer 3

The number of protons and neutrons in the nucleus of an atom