This type of chemical bond forms when electrons are either gained or lost by an atom.

a. ionic
b. covalent
c. metallic
d. van der waal

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Ab c or d ? i’m not sure what the answer is