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Calcium is in group 2, period 4 of the Periodic Table. It has an electron configuration of 1s2 2s2 2p6 3s2 3p6 3d10 4s2. This shows us that 4 is its valence shell. Therefore, the other 3 shells are its core shells.
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Why are sea shells hard?
Sea shells are hard because they are made primarily of calcium carbonate, which is a mineral that provides strength and structure. Many marine organisms use calcium carbonate to build their shells, creating a protective barrier that helps them defend against predators and environmental stressors.
How many outer shell electrons does calcium have?
The calcium atom has 2 outer shell electrons. It's configuration is: [Ar] 4s2 it also has 2 inner shell electrons
What compound is made from the elements oxygen calcium and carbon?
Calcium carbonate is the compound made from the elements oxygen, calcium, and carbon. It is commonly found in rocks, shells, and pearls.
How many core electrons are in bromine?
2,8,18,7... 28 core electrons 7 valence electrons.
Which group of protists possess calcium carbonate shells?
Foraminiferans (or forams) are single-celled protists with a calcium carbonate (CaCO3) shell around their plasma membrane. ***Straight out of my biology text book
How many shells do calcium have?
Calcium has 20 electrons in its electronic configuration, therefore it has 20 shells.
Do clam shells have calcium?
Yes, clam shells contain calcium carbonate which is a form of calcium. Calcium is a key component of shell formation in many marine organisms, including clams.
How many different shells does a calcium atom have?
4
What are shells use for?
shells have a many uses like, gardening, good source of calcium, and as a ferteliser
What do many animals use to form bones or shells?
Calcium
Is calcium in shells?
Yes. Eggshells are composed of approximately 95% calcium carbonate (CaCO3). One average 5.0 gram egg shell shells out 2.0 grams of calcium.
Can you find calcium in nature?
Pure calcium is hard to find. But things like oyster shells have calcium in them.
How many outer shell are in calcium?
The outer shell of calcium has two electrons.
Can chickens eat pea shells?
Yes. The shells must be ground or pulverized enough for the chickens to swallow them. Shells provide an important source of calcium. Calcium is necessary for egg production and health egg shells.
Are shells inorganic or organic?
Shells are organic sediments.
What is the number of of electron shells in CALCIUM?
4 electron shells; 2 electrons in first, 8 in second, 8 in third and 2 in valence shell.
Are sea shells ionic covalent or metallic?
Sea shells are made primarily of calcium carbonate, which is a compound that contains ionic bonds between calcium and carbonate ions. This makes sea shells predominantly ionic.
