What is Rutherford's important contribution to our knowledge of atomic structure?
A) Atoms contain a small,dense,positively charged nucleus,surrounded largely by empty space.
B) The atom cannot be created,divided,destroyed,or converted to any other type of atom.
C) Electrons in an atom have the magnetic property of spin.
D) Electrons are confined to certain specific regions of space outside the nucleus.
E) Electrons follow circular paths around the nucleus of an atom.
Correct Answer:
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Q2: The identity of an atom is determined
Q3: Which period contains the element sodium?
A)one
B)two
C)three
D)five
E)eleven
Q4: Which statement concerning atoms is FALSE?
A)The atomic
Q5: Who stated that the elements,when arranged according
Q6: When is an atom in its ground
Q7: What are the three primary particles found
Q8: Which statement about the modern periodic table
Q9: In modern atomic theory,Bohr's orbits are replaced
Q10: The ion K+ is formed by which
Q11: What was J.J.Thomson's important discovery about cathode
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