What Is The Electron Configuration Of Calcium (Ca)?


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Hannah Barton Profile
Hannah Barton answered
The electron configuration of calcium is 1s2 2s2p6 3s2p6 4s2. There are four rings of electrons around the nucleus and there are two electrons in the first ring, eight in the second ring, eight in the third ring and two in the fourth ring. This makes 20 electrons and therefore there will also be 20 neutrons and 20 protons present in the nucleus.

Here are some other basic facts about where calcium is placed in the periodic table;
  • Atomic number 20.
  • Group 2.
  • Period 4.
  • Calcium is an alkali earth metal.
Calcium is a naturally occurring element and is found in chalk limestone and marble. These have all been used in construction for thousands of years. Therefore, calcium has been in use for longer than we even know that it existed.

It was discovered as an element in 1808 by Humphrey Davy in London, England. At this time it was referred to as calcis or lime and it as found to be present in many rocks.

Calcium is incompatible with water, acids, air chlorine fluorine, oxygen, silicon and sulphur. It breaks down and reacts when mixed with these substances.

There is also calcium in our bodies. On average, there is 1kg in every 75kg human being. This calcium is naturally occurring but it is also taken in through our diet. Plants that are grown in soil that contains calcium will have levels of calcium in them and animals also have calcium in them as we do and when we eat dairy or meat, this is transferred to us.

It is recommended that we eat calcium as it is nutritious.
Anonymous Profile
Anonymous answered
Calcium Number of Energy Levels: 4

1st Level: 2

2nd Level: 8

3rd Level: 8

4th Level: 2

Electronic configuration of calcium: 1s2 2s2 2p6 3s2 3p6 4s2
Anonymous Profile
Anonymous answered
It shifts to a configuration of -2 because thats the best way to become stable.
Anonymous Profile
Anonymous answered
Mohith H Profile
Mohith H answered

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