The Modern Atomic Theory Answers

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Which of the following is not a valid set of quantum numbers?

n = 2, l = 1, m = 0

n = 1, l = 0, m = 0

n = 3, l = 3, m = 3

Which of the following is the correct electron configuration for titanium (Ti)?

1s22s22p63s23p64s23d2

1s22s22p63s23p63d4

1s22s22p63s23p64s24p2

What is the correct representation for the subshell with n = 2 and l = 1?

Which of these diagrams correctly shows the electron configuration for the atom with one more electron than the one shown above?

Option

Which is the correct electron configuration for sodium (Na)?

1s22s22p62d1

1s22s22p63s1

1s22p63d3

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