Identify for an atom of 32S: element name: _____________ Z, atomic number = ____ A, mass number = ____ number of neutrons = ____ total “+” charge in the nucleus = ____ total number of subatomic particles = ___

Atomic o Mass Number of Name uon lo Symbol Number Neutrons W. Number 8. 2raon ls. 1sd: bozogorq 10 6 ros 20

3. State the number of neutrons and protons in each of the following nuclei: a. ¹₁ H 1 179 b. C. d. 14 AU 79 6 C 239 992 U

Element: Lead Number of Number of Abundar (decima Name of isotope Mass (amu) Abundance Protons Neutrons (%) Lead-204 203.973 Lead-206 205.974 24.10% Lead-207 206.976 22.10% Lead-208 207.977 52.40% Isotope Mass Abundance

Caused large deflections of alpha particles in Rutherford's experiment  a. proton b. neutron c. electron d. nucleus

The proton and the electron have about the same mass. Most of the mass of an atom is due to The neutron is electrically neutral. the protons and neutrons. The mass number is the number of The charge of a proton is equal, but opposite, to the charge of a neutron. protons. True False More information needed to make a determination

QUESTION 3 An atom of1/Te has a mass of 116.908630 amu. Calculate the mass defect (deficit) in amu/atom. Use the masses: mass of 'H atom = 1.007825 amu mass of a neutron = 1.008665 amu 1 amu = 931.5 MeV/c2 %3D Give your answer to 4 significant figures and DO NOT use E notation. No charity points will be awarded..