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Chemistry test: Structure of the atom 2

Chemistry test: Structure of the atom 2 Continue the "Chemistry test: Structure of the atom".

Question 1 from 11: The atomic mass of an element is determined by:
Question 2 from 11: The stable isotopes of silicon are: Si (Z = 14, A = 28) = 92,27% Si (Z = 14, A = 29) = 4,68% Si Si (Z = 14, A = 30) = 2 07%. The relative atomic mass of silicon is:
Question 3 from 11: The relative atomic mass of oxygen is:
Question 4 from 11: Isotones are characterized by:
Question 5 from 11: Isobars are characterized by:
Question 6 from 11: The chemical element with the following characteristics Z = 8 and A = 16 is made from:
Question 7 from 11: The core contains positively charged electric loads also called:
Question 8 from 11: The core contains neutral electrical charges also called:
Question 9 from 11: Electrons that have an electric charge:
Question 10 from 11: If nucleus transformations occur spontaneously, the process is called:
Question 11 from 11: If nucleus transformations occur spontaneously, the process is called: