How many orbitals are there in the n = 6 shell of an atom? ( )
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Which experiment shows the particle property of the electromagnetic radiation? ( )
A. Thomson’s cathode-ray experiment
B. Rutherford’s gold foil experiment
C. diffraction of electrons
D. the photoelectric effect
The electrons in which subshell experience the largest effective nuclear charge in a multielectron atom? ( )
A. 4s
B. 4p
C. 4d
D. 4f
Which set is arrange in order of increasing radii? ( )
A. Br -
B. Cl -
Cl -
D. Br -
In which series are the atoms arranged in order of decreasing ionization energy? ( )
A. Sr > Ca > Mg
B. Li > Be > B
C. Ne > Na > Mg
D. Cl > Br > I