Explanation:
Calcium is the element that has 2 valence electrons.
Answer:
Yes
Explanation:
Natural gas is colorless and odorless, and explosive, so a sulfur-smell (similar to rotten eggs) is usually added for early detection of leaks. ... Natural gas is a fossil fuel. Natural gas is a non-renewable hydrocarbon used as a source of energy for heating, cooking, and electricity generation.
Answer:
I think that it might be 2.7
Explanation:
The existence of spectra can help the existence of atoms by expanding and multiplying in the law of London Dispersion
