Atom Calculator

Calculate atomic properties from particle counts.
Calculator
Enter your values
Results
Element Symbol
12C
Carbon
Mass Number
12
Net Charge
0
Atomic Analysis
Structure details

Identity

With 6 protons, this is Carbon. It is a neutral atom.

Isotope Info

Mass number 12 indicates this is a specific isotope. The ratio of neutrons to protons affects nuclear stability.

How to Use

Step-by-step instructions
  1. 1Enter the number of protons.
  2. 2Enter the number of neutrons.
  3. 3Enter the number of electrons.
  4. 4The calculator will identify the element and properties.

Atomic Structure

Mass number is the sum of protons and neutrons. Net charge is protons minus electrons.
Mass = p + n, Charge = p - e

Variables:

pProtons (Atomic Number)
nNeutrons
eElectrons

Example

Carbon-12

Inputs:

Protons:6
Neutrons:6
Electrons:6

Steps:

  1. 1.Mass Number = 6 + 6 = 12
  2. 2.Charge = 6 - 6 = 0
  3. 3.Element = Carbon (C)
Result:
¹²C (Neutral)

Frequently Asked Questions

What determines the element?

The number of protons (atomic number) determines the identity of the element.