29. Which pair of elements has the most physical and chemical propertiesin common? *7A. Hydrogen (H) and Helium (He)B. Boron (B) and

29. Which pair of elements has the most physical and chemical properties in common? *
7
A. Hydrogen (H) and Helium (He)
B. Boron (B) and Carbon (C)
C. Neon (Ne) and Argon (Ar)
D. Sodium (Na) and Florine (F)

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This Post Has 6 Comments

  1. The answer is Al and Ga

    This is because Al (aluminum) and GA (gallium) are in the same row in the periodic table, unlike the other answers. This makes them have the MOST physical and chemical properties in common.

    PS. if you find yourself with an answer with multiple pairs of elements that are in the same row, the answer will be the ones that are closest to each other.

  2. Common table salt is called sodium. Sodium is found in group 1 and form 2.8.1 Valence electron. properties of group 1 would be low melting and boiling point, very soft , low density and very reactive

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