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We can find calcium as a non metal element. Atomic number of it is 20.

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9y ago
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14y ago

Yes, Calcium has an atomic number of 20 but its Atomic Mass is actually 40.078 and it is the 5th. most abundant element by mass in the Earth's crust.

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12y ago

20 electrons

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8y ago

It equals to 20. Mass number equals 40

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Q: Calcium atomic nummber is 20 what period is caluim?
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Related questions

What period is in calcium if atomic number 20?

Calcium is a non metal element. Atomic number of it is 20.


Bromine potassium copper and calcium in increasing size would be ordered like what?

Bromine, Copper, Calcium, PotassiumBromine- smallest, 4th period atomic #35Copper- second smallest, 4th period, atomic # 29Calcium- second largest, 4th period, atomic # 20Potassium- largest, 4th period, atomic # 19


What is calcium period address?

Calcium has the atomic number 20 and is placed in the fourth period and the second group of the periodic table of Mendeleev.


What element is in period 4 and is metallic and has 20 electrons?

calcium (Ca)


What is the atomic radius of caesium?

The farther to the left and toward the bottom of the periodic table, the lower the electronegativity, and the larger the atomic radius. Calcium has a large atomic radius in comparison to elements in it's own period. What are you comparing calcium too? Calcium does have a large radius but not the largest, the largest is Cesium.


What periodic period is calcium in?

Calcium is present in period 4. its group no. is 2


What period is calcium in?

Calcium is present in period 4. its group no. is 2


What element has 20 electrons and in period 4 and metallic?

Calcium has 20 electrons and has an atomic weight of 40.078 amu. It is in group 2, period 4 of the Periodic Table, and is a soft gray alkaline earth metal.


What element period 4 has 27 electrons?

Overview of Cobalt Atomic Number:27 Group: 9 Period: 4 Series: Transition Metals


What is the period for the element calcium?

its the 4th period


Where is calcium located on the periodic table?

Calcium is a metal. It readily oxidizes in air. Because it makes up such a large part of the skeleton, about one-third of the mass of human body comes from calcium, after water has been removed.


Why does atomic size increase from left to right across a period?

atomic size decreases across a period