English, asked by kavyakavya635, 1 month ago

most metallic elements

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Answered by parthasarathidas78

1

Answer:

Boron is a chemical element with the symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar System and in the Earth's crust. It constitutes about 0.001 percent by weight of Earth's crust.

Symbol: B

Atomic number: 5

Atomic mass: 10.811 u

Electron configuration: [He] 2s22p1

Electronegativity: 2.04

Van der Waals radius: 180 pm

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Answered by lilme0w

1

Answer:

The most metallic element is francium.

Explanation:

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