41. The average atomic mass of sodium is _____. The atomic number of sodium is _____. Na
has _____ neutrons, _____ protons and _____ electrons.
42. An atom of gold has _____ protons, _____ electrons and _____ neutrons.
43. An atom of Iron has _____ protons, _____ electrons and _____ neutrons.
44. Define Isotope.
235
45. An Isotope of Uranuim is U
. Calculate the number of protons, electrons and neutrons for
235
the U
isotope. SHOW ALL WORK.
Protons = _____
Electrons = _____
Neutrons = _____
46. Draw an atom of Helium.
47. Draw an atom of Chlorine.