The nucleus of a 191Ir nuclide contains
A) 191 neutrons and 268 electrons.
B) 77 protons and 191 neutrons.
C) 191 protons and 114 electrons.
D) 191 protons,77 neutrons,and 191 electrons.
E) 77 protons and 114 neutrons.
Correct Answer:
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Q1: The symbol for tin is
A)T.
B)Tn.
C)Si.
D)Ti.
E)Sn.
Q3: Which of the following conclusions regarding Rutherford's
Q4: Who discovered the electron?
A)Bohr
B)de Broglie
C)Rutherford
D)Heisenberg
E)Thomson
Q5: Which one of the following lists gives
Q6: Cathode rays are
A)anions.
B)protons.
C)cations.
D)positrons.
E)electrons.
Q7: A series of silicon-hydrogen compounds with the
Q8: The names of the elements whose symbols
Q9: If the Thomson model of the atom
Q10: Which of the following lists gives the
Q11: A subatomic particle is
A)a piece of an
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