Which of the following elements has the lowest electronegativity?
A) K
B) Kr
C) Br
D) Se
Correct Answer:
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Q76: The cation formed when a sodium atom
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Q79: The formula of magnesium nitride is
A)Mg₃N₂.
B)Mg₂N₃.
C)Mg₂N.
D)MgN.
Q80: Octet means
A)stable electrons.
B)valence electrons.
C)eight.
D)filled shell.
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A)SO₂
B)N₂
C)F₂
D)BaO
Q84: Which of the following pairs of atoms
Q85: The most electronegative atom is
A)Cl.
B)F)
C)Na.
D)I)
Q86: Which of the following elements has the
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