Potassium, Discovered By Sir Humphry Davy

Potassium in the human body is largely located in the cells as the major cation of the intracellular fluid. There is also a small amount of potassium in the

Dynamite was invented in 1867 by Alfred Nobel. According to livescience.com, Nobel’s father was a inventor. Nobel attended school in St Petersburg and shined in his studying. While there he gained a interest in poetry, this interest caused his father to put him in stricter chemistry and engineering classes. If not for this Alfred Nobel could have became a poet.

Pierre Janssen discovered helium in the spectrum of the corona of the sun during an eclipse in 1868. Shortly after it was identified as an element and named by the chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer. The gas was first isolated from terrestrial sources in 1895 by the British chemist Sir William Ramsay, who discovered it in cleveite. In 1907 Sir Ernest Rutherford showed that alpha particles are the nuclei of helium atoms.

The atomic number of potassium (3919K) is_19_. This means that a potassium atom has _19 protons and 19_ electrons.

Uranium was discovered in 1789, by Martin Heinrich Klaproth, a German chemist. He first believed the substance he got from pitchblende was pure uranium, but it was actually

Na and K belong to the same group. How many valence electrons does each have?

In 1787, an unusual rock had come across the work of Dr. Adair Crawford when investigating witherite, a mineral in Strontian, Scotland ("Strontium | Periodic Table." Royal Society of Chemistry). The discoverer of the element was testing the results of witherite and hydrochloric acid. When Dr. Crawford mixed witherite with hydrochloric acid he did not get the results he expected. He assumed that his sample of witherite was contaminated with an unknown mineral, a mineral he named strontianite ("The Element Strontium." It's Elemental). The discovery by Dr. Adair Crawford was the start of strontianite, but it was not the end of research on this element. Although Dr. Crawford technically discovered strontianite, he did not prove that it was a new element. In 1791, Thomas Charles Hope, continued the investigation of strontianite ("Strontium | Periodic Table." Royal Society of Chemistry). Through his investigation, Hope proved that strontianite was a new element. Finally the element, now known as Strontium, was isolated. Strontium was first isolated by Sir Humphry Davy, an English chemist, in 1808 through the electrolysis of a mixture of strontium chloride and mercuric oxide ("The Element Strontium." It's

odorless (“Krypton”). It is located in group 18 and period 4 on the periodic table (Meadows).

Thrane Esmark and identified by a Swedish chemist, Jӧns Jacob Berzelius in 1828. Thorium was

Potassium Chloride is a metal halide salt composed of potassium and chlorine. In its pure state, it is odorless and has a white or colorless vitreous crystal appearance. It is commonly used in fertilizer.

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

Thomson discovered the electron. He used a cathode ray tube (an electron gun) with a magnet and discovered that the green beam it emitted was made up of negatively charged particles. Thomson then determined that these negatively charged electrons needed something positive to balance them out. (Born, 2014)

Krypton was founded by the Scottish and English chemists, Sir William Ramsay and Morris William Travers on May 30, 1898 ("The Element Krypton," n.d.). Their goal was to find noble gas elements in the last unknown 0.05% of air by liquefying and evaporating air (Newton, 2010). Ramsay and Travers were able to liquefy it by cooling the elements, primarily oxygen, nitrogen and argon, in air to the point that they changed into a liquid state (around -320.42°F) (Newton, 2010). However, the air warmed and cause the evaporation of the three main elements, resulting in the discovery of not only krypton, but additionally xenon and neon (Newton, 2010).

The Discovery of the Atom first came from the Greeks which made a theory “The idea that all matter is made up of tiny, indivisible particles, or atoms, is believed to have originated with the Greek philosopher Leucippus of Miletus and his student Democritus of Abdera in the 5th century B.C. (The word atom comes from the Greek word atomos, which means “indivisible.”)” (InfoPlease Atomic theory)

Potassium is crucial to heart function, important for normal digestive and muscular function. It is the primary positive ion (cation) found inside body cells that it is essential for normal cell function. The proper function of the body requires 8% electrolytes in the bones,90% in skin intracellular fluid and 2% in extracellular fluid. Buttarro, et. al., (2017) mentioned that the human body average potassium is about 50 mEq/kg and normal blood potassium level is 3.5 - 5.0 milliEquivalents/liter (mEq/L). The decrease in potassium level is known as Hypokalemia; it profoundly affects the nervous system and heart, and when extreme may lead to sever complication or death (Buttarro et. al., 2017). Hypokalemia is a possible life-threatening imbalance that in some cases are acquired through inducing drugs (iatrogenic), genetic, endocrine, vascular and renal disorders (Butarro et. al.,