a new element has two isotopes, one with a mass of 40.0 amu and the other with a mass of 42.0 amu. the atomic weight is 40.50 g/mol. pick the true statement.

What is an example of a college admissions test? -state test -cat -act -personality test

Will give brainliest to whoever !! what are some similarities and differences between the dongzhi festival (winter solstice) and christmas?

How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity