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Chemistry

1 answer:

Natasha2012 [34]3 years ago

4 0

Explanation:

Largest Alkali metal = Fr (Francium)
Halogen that's liquid at room temperature = Br (Bromine)
Most common element in earth = O₂ (Oxygen)
Non-metal with 1 valance electron = Halogens (Group 17)
A dense metal named for its use by Romans as pipes for plumbing = Pb (Lead)
Largest atomic radius of all period 4 element = Kr (Krypton)
Nonmetal that gain 3 electron to be stable like Neon = N₂ (Nitrogen)
Metalloid that is a major component of sand = Si (Silicon)

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Unknown:

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