It is the number under the element symbol. For potassium it is about 39. This means that the atomic weight is 39 for both protons and neutrons. Since we know that the number of protons is 19 we can calculate the number of neutrons (39 19) as 20.

Potassium(1+) is a monoatomic monocation obtained from potassium. It has a role as a human metabolite and a cofactor. It is an alkali metal cation, an elemental potassium, a monovalent inorganic cation and a monoatomic monocation….4.3Related Element.

Potassium is a chemical element with symbol K and atomic number 19. Classified as an alkali metal, Potassium is a solid at room temperature.

The name is derived from the english word potash. The chemical symbol K comes from kalium, the Mediaeval Latin for potash, which may have derived from the arabic word qali, meaning alkali.

Potassium

Food Sources of Potassium

• Bananas, oranges, cantaloupe, honeydew, apricots, grapefruit (some dried fruits, such as prunes, raisins, and dates, are also high in potassium)
• Cooked spinach.
• Cooked broccoli.
• Potatoes.
• Sweet potatoes.
• Mushrooms.
• Peas.
• Cucumbers.

Potassium metal is soft and white with a silvery lustre, has a low melting point, and is a good conductor of heat and electricity. Potassium imparts a lavender colour to a flame, and its vapour is green. It is the seventh most abundant element in Earth’s crust, constituting 2.6 percent of its mass.

Fun Potassium Facts

• Potassium is a shiny, lustrous metal at room temperature.
• Potassium vigorously reacts with water to form hydrogen gas.
• Potassium was the first metal to be discovered by electrolysis.
• Potassium has a low density for a metal.
• Potassium burns with a bright red in a flame test.

The largest use of potassium is potassium chloride (KCl) which is used to make fertilizers. This is because potassium is important for plant growth. Industrial applications for potassium include soaps, detergents, gold mining, dyes, glass production, gunpowder, and batteries.

Because of its high reactivity, potassium is not found free in nature. It is formed by supernovas via the R-process and occurs on Earth dissolved in seawater and in ionic salts. Pure potassium is a lightweight silvery metal that is soft enough to cut with a knife.

Although people sometimes confuse them with one another, the two aren’t the same. Potassium is a mineral and not a vitamin, and the two nutrients function differently in the human body. Still, they both contribute to better bone and heart health, among other benefits.

Potassium is one of the most important minerals in the body. It helps regulate fluid balance, muscle contractions and nerve signals. What’s more, a high-potassium diet may help reduce blood pressure and water retention, protect against stroke and prevent osteoporosis and kidney stones.

Potassium and sodium are soft metal which are easily cut exposing a shiny surface which changes to dull rapidly.

Metallic potassium is available commercially for about $40/lb in small quantities….

Sodium also floats on the surface, but enough heat is given off to melt the sodium (sodium has a lower melting point than lithium and the reaction produces heat faster) and it melts almost at once to form a small silvery ball that dashes around the surface….

Freshly cut sodium metal has a bright, shiny surface due to the oscillations of free electrons that quickly becomes a dull grey as it reacts with oxygen in the air around it. Over time, the metal becomes covered with a white crust of sodium oxide that prevents further reaction of the metal and oxygen.

Appearance and Hardness of materials

Magnesium is a shiny, silver or gray colored metal that is light in weight and strong. Th density of magnesium is 1.738 g/mL, which means the metal will sink in water, but it is still relatively light weight.

With a density less than that of water, potassium is the second least dense metal after lithium. It is a soft, low-melting solid that can easily be cut with a knife. Like the other alkali metals, potassium reacts violently with water producing hydrogen.

1. REDUCING. POTASSIUM IN. YOUR DIET.
2. Fruit. Higher potassium foods.
3. Apricot. Avocado.
4. All vegetables should be boiled, rather than steamed or microwaved. Boiling allows some of the potassium to leach into the water.
5. Asparagus. Artichoke.
6. Steamed, jacket or instant mashed. potatoes.
7. Dairy foods. Higher potassium foods.
8. Nuts. Seeds.

Potassium reacts with water more slowly than does rubidium, which is placed under potassium in the periodic chart. It reacts with water more rapidly than does sodium, which is placed higher in the periodic chart. Potassium is non-water soluble, but it does react with water as was explained earlier.

Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Why are they called the alkali metals? The alkali metals are so named because when they react with water they form alkalies. Alkalies are hydroxide compounds of these elements, such as sodium hydroxide and potassium hydroxide.

Definition of Potassium Chloride Its chemical formula is KCl, consists of one potassium (K) atom and one chlorine (Cl) atom. An ionic compound is made of a metal element and a nonmetal element.

Typically the elements of the post-transition metals include any metal in groups 13, 14, and 15 which are aluminum, gallium, indium, tin, thallium, lead, and bismuth….Here is a list of post-transition metals in order of abundance in the Earth’s crust:

• Aluminum.
• Gallium.
• Lead.
• Tin.
• Thallium.
• Indium.
• Bismuth.

Metals are the largest category of elements and they are characterized by their appearance: usually they possess a silvery shine, they are solid (except for mercury), they are malleable and they conduct electricity and heat. Transition metals are the elements that belong to the middle of the periodic table.

Not all d block elements count as transition metals! A transition metal is one that forms one or more stable ions which have incompletely filled d orbitals. On the basis of this definition, scandium and zinc do not count as transition metals – even though they are members of the d block.