Protons of all atoms are: a) different b) equal c) abnormal d) isotopic e) isoelectronic 3. The proton has electric charge: a) negative (b)). Positive c) neutral d) extreme e) intermediate 4. Atomic particle of greater mass: a) b) c) d) Nucleon Neutron Electron Proton e) 5 Quarks. Atoms of the same element contain the same number of: a) neutrons b) nucleons c). Proton d) mass e) isotopes 6.

How many electrons have the? a) 11 b) 3 c) 12 d) 44 e) 23 7. In an unknown element knows that A is 62 and Z is 30 how many neutrons does? a) 62 b) 32 c) 30 d) 92 e) 46 8. Two atoms have equal number of neutrons, in addition the sum of their protons is 76, and the difference of their mass numbers is 4 how many protons does the atom of higher mass? a) 45 b) 50 c) 27 d) 40 e) 36 9. The difference of squares of mass numbers and Atomic atom is 180. If the number of neutrons is 6, find the mass number. a.) 16 b) 14 c) 12 d) 10 e) 18 10. The atomic number of an element is 36. How many protons does? a) 72 b) 36 c) 17 d) 30 e) 65 11.

The atom contains: (a) 8 neutrons. (b) 9 protons. (c) 17 neutrons. (d) 8 electrons. (e) 9 electrons. 12 The fundamental particle of less mass is the: a) proton. (b) electron. (c) neutron. (d) nucleon. (e) meson. 13 The extranuclear zone of the atom contains: a) neutrons and protons.