1. The nucleus of an atom contains, essentially: a) electrons b) neutrons c) protons and electrons d) neutrons and protons e) neutrons and electrons 2. The protons of all the atoms are: a) different b) equals c) abnormal d) isotopic e) isoelectrnicos 3. proton it has load electrical: a) Refusal b) Positive c) Neutral d) It carries far e) Intermediate 4. Particle atomics of greater mass: a) Proton b) Electron c) Neutron d) Nucleon e) Quarks 5. The atoms of a same element contain same number of: a) Neutrons b) Nucleons c) Protons d) Mass e) Isotopes 6. How many electrons it has a) 11 b) 3 c) 12 d) 44 e) 23 7.
In an element stranger he knows that A he is 62 and Z is 30 How many neutrons have? a) 62 b) 32 c) 30 d) 92 e) 46 8. Two atoms have equal neutron number, in addition the sum to its protons is 76 and the difference of its mass numbers is 4 How many protons have atom of major mass? a) 45 b) 50 c) 27 d) 40 e) 36 9. The difference of squared of the atomic mass numbers and of an atom he is 180. If the neutron number is 6, to 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 have? a) 72 b) 36 c) 17 d) 30 e) 65 11.
The atom it contains: a) 8 neutrons. b) 9 protons. c) 17 neutrons. d) 8 electrons. e) 9 electrons. 12.
In an element stranger he knows that A he is 62 and Z is 30 How many neutrons have? a) 62 b) 32 c) 30 d) 92 e) 46 8. Two atoms have equal neutron number, in addition the sum to its protons is 76 and the difference of its mass numbers is 4 How many protons have atom of major mass? a) 45 b) 50 c) 27 d) 40 e) 36 9. The difference of squared of the atomic mass numbers and of an atom he is 180. If the neutron number is 6, to 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 have? a) 72 b) 36 c) 17 d) 30 e) 65 11.
The atom it contains: a) 8 neutrons. b) 9 protons. c) 17 neutrons. d) 8 electrons. e) 9 electrons. 12.