Question

find odd one out = boron, silicon,germanium,gallium​

Answer 1

ANSWER: gallium

EXPLANATION : as boron , silicon and germanium are metalloids .

whereas gallium is a metal.

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Answer 2

Boron is the odd one.

Explanation:

• Let's compare each elements,

• Boron is a metalloid and it’s a chemical element with the symbol B and atomic number 5.
• Silicon is a metalloid and it’s a chemical element with the symbol Si and atomic number 14.
• Germanium is a metalloid and it’s a chemical element with the symbol Ge and atomic number 32.
• Gallium is metal and it’s a chemical element with the symbol Ga and atomic number 31.
• Therefore, Gallium is the odd one because it is a metal while others are not.