We want to find how much charge is on the electrons in a nickel coin. Follow this method. A nickel coin has a mass of about 4.2 g. Find the number of atoms in a nickel coin. Each mole (6.02 × 1023 atoms) has a mass of about 57.8 g. Answer in units of atoms

The number of atoms is

Explanation:

From the question we are told that

                 The mass of coin  is

                   Number of atom in one mole =

                   Molar mass of nickel

Now the relation to obtain the number of atom in  the  nickel coin is

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

photocells convert light energy to electricity