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SAAT (English)

Chemistry: sample 7

These questions are ETEC/Qiyas's own officially published trial-exam questions, shown here with attribution. They are not sold and are not part of Smart Advanced Network for Education, Development & Achievement's original question bank.
Directions

Read the following questions. Choose the right answer.

There is only ONE correct answer to each question.

Which of the following sublevels is not present in the principal energy level with quantum number (n = 3)?

  1. s
  2. p
  3. d
  4. f
Show answer

Correct answer: D. f

Why

For principal quantum number n, the allowed sublevels are s, p, ..., up to (n−1) letters after s; for n=3 the sublevels are s, p, d only — f (which requires n≥4) is not present.

Source: The Standardized Academic Achievement Test (SAAT) for the Science Track Trial Test (ETEC official) Open the official document

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