How Many Protons Does Calcium Have?

Information on Protons
••• XMatt:

Every single discovered atom have protons, electrons, and neutrons. The number of each depends on its assigned atomic number. Protons have a positive charge, electrons have a negative charge and, as the name implies, neutrons have no charge.

Element Properties in the Periodic Table

When looking at an element in the periodic table, there are two numbers: the atomic number, which is found at the top, and the atomic weight, which is found at the bottom of the box.

How Many Protons in Calcium?

The number of protons found in the nucleus of calcium is the same as its atomic number: 20.


The number of electrons and the number of protons are always the same, unless the element is given another charge.


The atomic mass, the number at the bottom, is the sum of the number of protons and the number of neutrons. Just subtract the number of protons, 20 in this case, from the rounded number of the mass.


Changing the number of neutrons will change the element to another version of itself, called an isotope.

Related Articles

How to Find Isotopes
How to Find Out If an Element Is an Ion
How to Find the Mass Number of Bromine With 46 Neutrons
How to Find the Neutrons in the Periodic Table
What Are the Two Major Components of an Atom?
Number of Protons in an Uncharged Atom
Characteristics of Aquatic Plants
What is Atomic Number?
What Does It Tell You if Iron Has an Atomic Number...
Atomic Number Vs. Atomic Density
Different Kinds of Atoms
How Are Protons and Electrons Similar?
How to Calculate Particle Concentration
How to Mix Calcium Chloride and Water
The Locations of Protons, Neutrons and Electrons within...
Relationship Between the Atomic Number and the Chemical...
Why Is the Periodic Table Arranged in Columns & Rows?
How to Find the Number of Neutrons, Protons & Electrons...
How to Calculate Subatomic Particles
How to Write an Isotope

Dont Go!

We Have More Great Sciencing Articles!