An atom's first 2 energy levels are filled and there are 2 electrons in the third energy level. It's atomic number is:

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.