The Chemical Element Calcium

The mineral that is the most plentiful in the body is calcium. It is mainly found in bones and teeth but also in plasma and other fluids within the body. Calcium plays an important role in blood clotting, nerve transmission, muscle contraction and relaxation, cell membrane permeability and the activation of certain enzymes, along with protecting against colorectal cancer. The intake of calcium or dairy products is associated with lower blood pressures, controlling body weight and obesity.

According to National Institutes of Health, 99% of calcium is stored in our teeth and bones. Some of our organs require calcium for certain process, such as muscle contraction; therefore, the remaining one percent remains in our blood. The blood and bones regulates calcium levels by the means of hormones. Two of the main systematic modifiers are Calcitonin and the Parathyroid hormone.

Calcium plays a very significant role in our bodies. Approximately 99 percent of the calcium in our bodies is stored in the teeth and bones. Calcium generates about two percent of our total body weight. Calcium is crucial in bone formation, keeping strong bones and teeth and is known for helping to prevent osteoporosis. Although calcium is mostly thought about in the bones and teeth, it also plays important roles throughout the body. The amount of calcium outside the bones and teeth may be small in comparison to what is inside the bones and teeth, but is very useful in many functions in the body. Calcium is required in functions such as the contraction

Who discovered Calcium? Humphry Davy discovered Calcium in England in 1808 by electrolyzing a mixture of lime and mercuric oxide. The source name of Calcium is delivered from Latin ‘calx’ meaning lime, and the its symbol is Ca. It is silver colored, mainly hard metallic element that takes up approximately 3.5% of the earth's crust and is a basic component of most animals and plants. It occurs naturally in limestone, gypsum, and fluorite. The Physical and Chemical Properties are the characteristics of a substance, like Calcium, which distinguishes it from any other substance. Calcium is the 5th most abundant element on Earth but is very hard to extract,it takes up 4.15% of earth’s crust.Calcium is mainly found in Earth’s crust it becomes

Based on the results of the test, the unknown substance was Calcium Chloride. Multiple tests were performed to determine the identity of the substance. By comparing known positive results to the unknown substance, properties could be discovered about the substance. Most tests led to this conclusion, however some tests did not follow the established properties of Calcium Chloride.

Calcium supports the skeletal structure and its functions by conserving and sustaining the strength of bones and teeth. It is involved in other body processes such as muscle contraction, blood clot formation, nerve impulse transmission, cell metabolism, and assistance in maintaining a healthy blood pressure and immune system. Adult humans absorb approximately 1/3 of the calcium from food. A higher rate of absorption, 50-65%, can be observed amongst newborn infants, children, and pregnant women. Calcium is an essential nutrient and requires vitamin D to be absorbed. Vitamin D is also involved in the regulation of calcium homeostas is. When vitamin D is lacking, the intestine absorbs only 10-15% of the calcium in foods; with the vitamin, intestinal absorption of dietary calcium increases to 30-80%. Once calcium enters the body, it is absorbed throughout the length of the intestines, with the greatest amount of absorption

Did you know that calcium is the fifth most abundant element in the earth's crust? Calcium has been used for decades for creating statues and other things. It was not till 1808, when Sir Humphrey Davy isolated the element. Calcium has a greyish silverish color, and is rather hard. It can be found in many things, for example bones, teeth, shells, and in various minerals such as limestone, gypsum, and furite. It is classified chemically as one of the alkaline earth metals, and is rather reactive. Calcium is used for many things like as a building material, but one of the most important thing we use it for our bones. So make sure you drink your milk!

Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a dull gray, silver solid under standard conditions. Calcium atoms have an electron configuration of (2, 8, 8, 2) and 2 outermost shell electrons. Calcium is in group 2 and period 4 of the periodic table. Calcium commonly forms the cation Ca2+ by donating 2 electrons, reaching a stable electron configuration. Calcium is an alkaline earth metal.

Some minerals are used by our body in large amounts to form various structures like bones or teeth. Minerals like this are known as bulk minerals. Calcium is one of the better known bulk minerals. Another category of minerals are trace minerals. Trace minerals are used within the body in very small quantities. However, they are still just as important to good health as bulk minerals. Unfortunately, science didn't recognize the usefulness of trace minerals for many, many years. In fact, it was even thought that not

Even though calcium has been known for thousands years it wasn’t purified and identified as an element until 1808 by Humphrey Davy of England. Calcium isn’t just used for making strong bones it’s also used to remove nonmetal from different metals mixes. Calcium compounds are most commonly found in sedimentary rocks such as limestone, chalk, and marbles where I carbonate minerals.

One discrepancy that has to be explained would be for Part F(Chemical Reactivity Of Some Representative Elements), question 3 is we failed to obtain a result because time ran out before we could complete the experiment. However, based on my research, the calcium hydroxide salt would be more soluble than the magnesium hydroxide salt because the calcium is more reactive than magnesium. This is because calcium has 20 electrons thus, an electronic configuration of 2.8.8.2. However, magnesium has 12 electrons thus, an electronic configuration of 2.8.2 . In other words, calcium has four electron shells but magnesium has three making it easier for calcium to lose an electron as the distance between the nucleus and the electrons in calcium is further

When we look at the experiment we did with aluminum, calcium, and magnesium aluminum didn’t react to all three reactants. This is because aluminum has 3 valence electrons and 3 rings of electrons. Compared to calcium with 2 valence electrons and 4 rings and magnesium that has 2 valence electrons and 3 rings aluminum would have the most ionization energy. This is because aluminum the 3 valence electrons are more attracted to the nucleus of the atom and harder to take away fro the whole atom. Calcium has 4 rings and 2 valence electrons, when another atom tries to take away an electron from calcium it would require less energy because it is farther from the nucleus of the atom and wouldn't be as attracted.this also why calcium reacted to all of

The group 2 metal makes up 4.1% of the Earth’s crust, making it the fifth most abundant metal, and it can only be found in compounds, such as calcium carbonate, calcium sulphate and calcium fluoride (Royal Society of Chemistry). In the body, calcium exists as calcium phosphate to provide

Calcium regulation has significant effects on the human body's capacity to maintain homeostasis. Around 99% of the body's calcium is found within the skeleton in the form of calcium salts. The remaining 1% is found in blood and controlled within a very narrow range

6. The precipitate may have not dried up properly making it so there was water adding weight on it.