How Many Valence Electrons Does Calcium Have?

How many valence electrons does Calcium have?

Are you a chemistry student wanting to know the Calcium valence electrons and also how to calculate it like a pro? Then, you are in the right guide!

In this article, i will be explaining all about Calcium valence electrons, how to calculate it, and extra information you will need concerning calcium!

If you are ready for this learning experience, then let us get on it immediately!

I advise you watch the video below to understand more on calcium before we go into details.

What Is Calcium?

If you have been familiar with the first 20 elements from the periodic table, you will easily know that Calcium is the 20th element, having an atomic number of 20.

Calcium is an alkaline earth metal, and as such, it is reactive. It reacts with air to create a dark oxide-nitride layer.

Since its atomic and molecular characteristics are most comparable to its heavier homologues strontium and barium, you may assume that this element’s properties are mostly physical and chemical.

Calcium compounds take their source from calcium carbonate, which is found in limestone and fossilized remains of sea life. Other sources of calcium you can find include fluorite, anhydrite, gypsum, and apatite. Now lets talk about its history before moving to the Calcium valence electrons.

What is the history of Calcium?

Calcium got its name after the Greek word “calx” (from which the term “lime” arrives from), which also comes by heating limestone.

Prior to the seventeenth century, calcium compounds were well known to the ancients, but their chemistry remained unknown.

Electrolysis of its oxide by Humphry Davy yielded pure calcium in 1808, after which he called the element its name.

Why Is Calcium Important?

Cement manufacturers, paper manufacturers, and soap manufacturers all employ the use of calcium compounds for numerous activities.

On the other hand, Calcium has limited uses because of its high reactivity; nonetheless, humans use it as an alloying component in steelmaking, and on occasion, in the production of automobile batteries, as a calcium–lead alloy.

In your body, calcium is the fifth-most abundant element, and it is the most abundant metal.

Because of their role in several physiological and biochemical processes, calcium ions are an important part of all physiological and biochemical processe.

And that’s not all, they also function as a second messenger in signal transduction pathways, participate in neurotransmitter release from neurons.

Humans also use calcium for contraction of all muscle cell types, act as cofactors in many enzymes, and support fertilization.

Excitable cell membranes, protein synthesis, and bone formation all require calcium ions outside cells.

It is also super helpful in Muscular health, digestive system, blood circulation, and the formation of bonds are all supported by the element.

As you can see, the element Calcium is very vital in both Medicine and to emvironment! Now youve known that, lets move to how many valence electrons does calcium have!

However, before we do that, let’s define two key terms:

What Are Valence Electrons?

As you should know, every element has a shell. When it is full with electrons, it becomes a noble gas.

However, theyre just few elements that complete their shells, the remaining have few electrons which contribute to its valence electrons.

Electrons located in the outermost shell of an atom are valence electrons (i.e. in outermost orbital).

For a neutral atom, the valence electrons are always definite; that is always zero. You cannot vary the valence electrons in any situation and may or may not have the same number as the atom’s valency.

Valency is the total amount of electrons that they can share, lose, or acquire at the time of bond formation.

The valency of an atom can vary when various bonding conditions are present. The valency of most molecules influences elements in their oxidation and reduction states.

Calcium has two valence electrons, which you can find out yourself using these easy steps;

How To Find The Valence Electrons of Calcium

Step 1: Locate the Atomic Number

The first step you need to take is to locate the atomic number. A super easy way to find out the atomic number of Calcium is to look at the periodic table.

calcium valence electrons

Take a look at the table above, and see if you can find Calcium, abbreviated as Ca. Sure, you can find it at the left side in period 4 and group 2!

Calcium is a very straightforward element in that the atomic number is 20. For neutral calcium, the number of protons equals the number of electrons (i.e. 20 protons). However, in the proton state, its not the same!

Step 2: Generate an Electronic configuration for calcium

Electron configuration is the organization of electrons on the orbitals. Since there are 20 electrons overall in the calcium atom, we must put 20 electrons in orbitals.

Electrons will be assigned orbitals based on the energy levels,

The maximum number of electrons in the S orbital is two, P is
6, D is 10, and F is 14. Now heres how to configure a perfect electronic configuration for Calcium.

Remember that it has 20 electrons right? So you will need to put in all electrons into their respective shells: just like housing them in their respective zones! Lets go!

So, that will be 1s2, 2S2, 2P6, 3S2, 3p6, 4S2! Now lets move to the final step on finding how many valence electrons does Calcium have!

Step 3: Figure Out The Valence Electrons

The final step is to locate the valence electrons.

You know that its super easy to calculate valence electrons from the value of the most quantum numbers stated in the term of n.

Also, the most quantum numbers that can be represented in the term of n in calcium is 2. This means that the there are a total of two electrons in the valence shell of calcium.

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Recap: How Many Valence Electrons Does Calcium Have?

An atom’s valency represents the types of atoms it can bind with. When an atom or a free radical is entering a bond with another element, Valence electrons determine everything.

Valency is calculated based on the number of electrons that are lost, acquired, or shared when forming a bond.

When an atoms outermost shells have eight electrons, it is considered to be stable (except H, He). The valency of an atom is positive if the total number of electrons in the outermost shells is between one and four, and is zero if the number of electrons is between four and eight.

Having an outermost valency of four for atomic elements with four outermost electrons has a valency of either positive or negative. Eight outermost electrons would have zero valency (i.e. noble gases).

Due to loss of two electrons, the elements of calcium can attain the inert gas configuration Ar. For a two-valent calcium atom, the valency is 2.

Atoms Can Lose or Gain Electrons to Become Stable

It should be noted that, for the most part, calcium has a stable oxidation state of +2 although it may vary in certain compounds. It is merely an oxidation number that might vary from compound to compound. However, no matter what, it always has a valency of two.

In a different way of looking at it, an atom of calcium may have a maximum of two covalent bonds (such as CaO, CaCl2, CaSO4, etc.) when in chemical bonding, and what valency is, the maximum amount of bonds that atom can create in chemical bonding.

Calcium’s valency may also be found by using the periodic table. Calcium, which is also a part of group 2A (or IIA) with beryllium (Be), magnesium (Mg), strontium (Sr), barium (Ba), and radium, can be substituted with these other elements (Ra).

This group of alkaline earth metals are also known as these Alkaline Earth Metals. And yes, because they all fall into the same group, their valency is two!

Final Words on How Many Valence Electrons Does Calcium Have?

In this article, you have come to know about Calcium valence electrons, as well as how to find it easily using some quick steps. Calcium has two valence electrons, which does answer your question on how many valence electrons does calcium have! Do you have any questions? Drop them in the comment box below!

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