How do you determine the charge of an isotope?

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.

In general metals get as you move from left to right across the periodic table.

Give one example of a pure (exact) number and of an estimated (measured) number.