What is the atomic mass of an element that has 6 protons, 7 neutrons, and 6 electrons? 6
7
13
19

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98