What is the mass number of an isotope of this atom that has 2 neutrons

The correct notation for an alpha particle

A fish appears to be 3 m below the surface of a pond when viewed almost directly above by a fisherman. What is the actual depth of the fish? (n water = 1.

Wut is a birds eye view of a collsion

The Statue of Liberty is made out of copper and was once shiny and copper-colored. Over the years, the copper has gone through a process called oxidation, where it has changed into a new material.

Where is the most common place you see Plasma?

3. solve the following with regard to significant figures a) 5.8 + 0.125 II) 3.9x105-2.5x104

During a double-slit experiment, you have the option of using either a green laser or a blue laser for your light source.

How much power is used to lift a 1.9 kg brick 1.9 in 2. s

The maximum number of orbits in an atom is

What communication device allows us to communicate with very distant places via telephone?