Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt. Based on this information, which expression is true about the electronegativity values of these two elements?
A) Na > Ci
B) Na < Ci
C) Na = Ci
D) We cannot make a prediction with data provided.

The correct answer in this question is option B. The electronegativity increases across a group. Chlorine ion has a higher electronegativity than the sodium ion. Chlorine need one electron to have a noble gas configuration that is why it gets one electron every chance it makes.

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Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt. Based on this information, which expression is true about the electronegativity values of these two elements? A) Na > Ci B) Na < Ci C) Na = Ci D) We cannot make a prediction with data provided.

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Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt. Based on this information, which expression is true about the electronegativity values of these two elements?
A) Na > Ci
B) Na < Ci
C) Na = Ci
D) We cannot make a prediction with data provided.