A sample of an element consists of two isotopes. The percent abundance of one of the isotopes is 43.0%. What is the percent abundance of the other isotope?

Gallium melts near room temperature and has one of the largest  liquid  ranges of any metal, so it has found use in high temperature thermometers.

I'm not sure but i will try to find out

D=m/v =57.9/3 = 19.3 g/cm^3

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.