Answer:
They are the smallest units of matter
Explanation:
Atom are the basic units of a chemical element; the smallest unit of an element that retains the properties of an element
Answer:
both will be at liquid state. the particles will move rapidly in all directions and will collide with other particles in random motion
I believe it's 1,100 to 1,500 sunspots.
Energy of electron decrease when it move toward neuclus and increase when move away as 2p orbital is away from 2s so energy of electron is less in 2s as compare to 2p
Atmospheric pressure is measured with a barometer. A barometer consists of an evacuated vertical tube with its top end closed and its bottom end resting in a container of mercury that is open to the atmosphere The pressure exerted by the atmosphere acts on the exposed surface of the liquid to force mercury up into the tube. Sea level atmospheric pressure will support a mercury column generally not more than 29.92-in. high. Thus, the standard for atmospheric pressure at sea level is 29.92 in.-Hg, which translates to an absolute pressure of 14.69 psia.
The two basic reference points in all these measurements are standard atmospheric pressure and a perfect vacuum.