12) a neutral atom has two, eight, eight electrons in its first, second, and third energy levels. this information
a) does not tell us about the atomic number of the element
b) does not tell us about the chemical properties of the element
c) does not tell us about the atomic mass of the element
d) does not tell us about the size of the element bloom's taxonomy: application/analysis section: 2.2

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?

An atom that has gained or lost electrons is called an _