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ECAT Chemistry QUESTION #792
Question 1
Which of the following is true?
  • \(\text{Na}^+\) is smaller than \(\text{Na}\)✔️
  • \(\text{Cl}^-\) is less than \(\text{Cl}\)
  • \(\text{Na}^+\) is greater than \(\text{Na}\)
  • None
Correct Answer Explanation
When \(\text{Na}\) loses an electron to form \(\text{Na}^+\), the electron cloud shrinks due to increased nuclear charge per electron, making \(\text{Na}^+\) smaller than \(\text{Na}\).