🔹 Carbon (C)

• Atomic number (Z) = 6

• Mass number (A) = 12

• Protons = 6

• Electrons = 6

• Neutrons = 12 − 6 = 6

🔹 Nitrogen (N)

• Atomic number (Z) = 7

• Mass number (A) = 14

• Protons = 7

• Electrons = 7

• Neutrons = 14 − 7 = 7

Proton : Positive

Neutron : No charge

Electron : Negative

Protons are positive, electrons are negative, neutrons have no charge.

Mass:

Protons and neutrons are heavy (about the same), electrons are much lighter.

Position:

Protons and neutrons are packed in the nucleus, while electrons move around it.

Simple way to remember:

Proton = Positive

Neutron = No charge

Electron = External (outside nucleus)

Mass Number : Protons + Neutrons

Net Charge : Protons - Electrons

Carbon(C) has atomic number 6 and mass 12.011.

Nitrogen(N) has atomic number 7 and mass 14.007.