Q. 1105.0( 1 Vote )

# Science Applic

(a) Given that: An atom consists of,

Number of electrons = Number of protons

Let there be ‘a’ number of protons and ‘a’ number of electrons.

And, charge on 1 proton = +1

Then, charge on ‘a’ protons = 1 × a = a

Charge on electron = -1

Then, charge on ‘a’ electrons = -1 × a = -a

Total charge = Charge on ‘a’ protons + Charge on ‘a’ electrons

Total charge = a + (-a)

Total charge = 0

Thus, charge of an atom when there are equal number of electrons and protons is 0.

(b) Let the atom have ‘a’ number of electrons and ‘a’ number of protons.

If an atom loses an electron, it is left with (a – 1) electrons.

Number of protons = a

Now, charge on 1 electron = -1

Charge on ‘(a – 1)’ electrons = -1 × (a – 1)

Charge on ‘(a – 1)’ electrons = -(a – 1)

Charge on ‘(a – 1)’ electrons = (1 – a)

Charge on 1 proton = 1

Charge on ‘a’ protons = 1 × a

Charge on ‘a’ protons = a

Total charge on atom = (1 – a) + a

Total charge on atom = 1

(c) Let the atom have ‘a’ number of electrons and ‘a’ number of protons.

If an atom gains an electron, it becomes (a + 1) electrons.

Number of protons = a

Now, charge on 1 electron = -1

Charge on ‘(a + 1)’ electrons = -1 × (a + 1)

Charge on ‘(a + 1)’ electrons = -(a + 1)

Charge on 1 proton = 1

Charge on ‘a’ protons = 1 × a

Charge on ‘a’ protons = a

Total charge on atom = -(1 + a) + a

Total charge on atom = -1 – a + a

Total charge on atom = -1

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
RELATED QUESTIONS :

Water level in a NCERT - Exemplar Mathematics

<span lang="EN-USNCERT Mathematics

Write a pair of iNCERT - Exemplar Mathematics

If * is an operatNCERT - Exemplar Mathematics

State whether theNCERT - Exemplar Mathematics

<span lang="EN-USNCERT Mathematics

Evaluate the follNCERT - Exemplar Mathematics

Write a positive NCERT - Exemplar Mathematics

Write a positive NCERT - Exemplar Mathematics

A green grocer haNCERT - Exemplar Mathematics