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Which pattern in electronegativity do elements in the periodic table display?

A.) Electronegativity is lowest on the left and right sides of the periodic table, and highest in the middle of a row.
B.) Electronegativity is highest on the left and right sides of the periodic table, and lowest in the middle of a row.
C.) Electronegativity decreases from left to right within a row of the periodic table.
D.) Electronegativity increases from left to right within a row of the periodic table.

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onyebuchinnaji

The observed pattern is electronegativity increases from left to right within a row of the periodic table.

In the periodic table, the most active metals are arranged on the far right while the most active non metals are arranged on the far left of the periodic table.

  • The most active metals are found in group 1, which decreases as you move to group 3 and this similar to decrease in electropositivity.
  • As, the electropositivity  decreases, the electronegativity increases and the most active non metals are found in group 7 of the periodic table.
  • The most electronegative element is Fluorine which is found in group 7 of the periodic table.

Thus, we can conclude that electronegativity increases from left to right within a row of the periodic table.

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angelkakes64

Answer:

#1. An acid can donate protons to a base when they react.

#2. The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.

#3. HCl is an acid, and Cl– is its conjugate base.

#4. Electronegativity increases from left to right within a row of the periodic table.

#5. 1.0 × 10-7 mol/L

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