Question

Atomic no.=10
Mass no. = 12
Find out the no. of Electrons, Protons nd Neutrons​

Answer 1

Answer:

E=2,

P=8,

N=2

Explanation:

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Answer 2

Answer :

• Electron = 10
• Proton = 10
• Neutron = 2

Explanation :-

To Find,

• Number of electrons
• Number of protons
• Number of neutrons

Solution,

Given that,

• Atomic number = 10
• Mass number = 12

As we know that,

$\dag \: \boxed{\sf{Atomic \: Number = No. \: of \: electrons = No. \: of \: protons}}$

Therefore,

• Number of electrons = 10
• Number of protons = 10

Now, number of neutrons,

As we know that,

$\dag \: \boxed{\sf{Mass \: number = No. \: of \: protons + No. \: of \: neutrons}}$

Therefore,

➩ $\sf{10 + No. \: of \: neutrons = 12}$

➩ $\sf{No. \: of \: neutrons = 12 - 10}$

➩ $\sf{No. \: of \: neutrons = 2}$

Therefore, number of neutrons is 2.

More Information

• The symbol of electron is $\sf{{e}^{-}}$
• The symbol of proton is $\sf{{p}^{+}}$
• The symbol of neutron is n
• Mass number is generally denoted by A.
• Atomic number is generally denoted by Z.