Question

How calculate the number of elememtsprotons and neutrons present



c?

Answer 1

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Part 1 Calculating Protons, Electrons, and Neutrons

Get a periodic table of elements. ...

Find your element on the periodic table. ...

Locate the element's atomic number. ...

Determine the number of electrons. ...

Look for the atomic mass of the element. ...

Subtract the atomic number from the atomic mass.

Answer 2

Explanation:

16 Neutrons

Given:

Element X

Mass number of the Element = 31

Number of Electrons in the Element = 15

To Find:

Number Of Neutrons in the element

Formula used for calculating mass number of an element:

Mass Number = Number Of Protons + Number Of Neutrons

Substituting the values known to us in this formula we get:

31 = 15 + x

31 - 15 = x

x = 16

Therefore, the number of neutrons present in the atom is 16 neutrons.