The total negative charge on the electrons in 1mol of helium (atomic number 2, molar mass 4) is

The total negative charge on the electrons in 1 mol of helium is 2e⁻

The negative charge in 1 mole of a substance (here; it is helium atom) is equal to 6.022  10²³ atoms and it is also equal to 96485 C/mol

In 1 mole of helium containing 2 atomic numbers and a molar mass of 4.

The total negative charge on the electrons for 1 mole of helium can be computed as:

= 192970 C

Recall that:

The negative charge in 1 mole of helium = 96485 C/mol

∴

Numbers of negative charge in 192970 C of helium is:

= (192970/ 96485)

= 2e⁻

Learn more about atomic numbers here:

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Explanation:

We are given that

Atomic number=2

We have to find the total negative charge on the electrons in one mole of Helium.

We know that atomic number=Proton number

Proton number=Number of electrons=2

Number of electrons in Helium=2

1 mole of Helium= atoms

We know that q=ne

Where n =Number of fundamental units

e=Charge on electron

1 e=

Using the formula

Total negative charge in 1 mole=

Hence, the total negative charge on the electrons in 1 mole of Helium=

c.the charges if the proton and electron and gravity

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2