The atomic number of potassium is 19, and the atomic number of chlorine is 17. Knowing this information, how many valence electrons does each have? What type of bond do you predict they will form? Potassium has 1 valence electron. Chlorine has 7 valence electrons. Potassium will donate an electron to chlorine, giving each a full outer electron. So if you look for potassium (symbol K in the periodic table), you will find that it has the atomic number of 19. This tells you that potassium has 19 protons and - since the number of protons is the same as the number of electrons- also 19 electrons. To find out the number of neutrons you have to look at the atomic mass or weight of the element.
What is the electron configuration, orbital diagram, and noble gas notation of potassium?
1 Answer
Potassium's atomic number is 19. This means that every atom of potassium has 19 protons in its nucleus. In a neutral atom, the number of protons is equal to the number of electrons. So the electron configuration of potassium will involve 19 electrons.
The full electron configuration of potassium is
The noble gas notation is
The following orbital diagram shows the increase in energy from one energy sublevel to the next, but you can write them on the same level horizontally,
Related questions
Atomic Number of Potassium is 19.
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Chemical symbol for Potassium is K. Number of protons in Potassium is 19. Atomic weight of Potassium is 39.0983 u or g/mol. Melting point of Potassium is 63,7 °C and its the boiling point is 774 °C.
» Boiling Point» Melting Point» Abundant» State at STP» Discovery YearAbout Potassium
One of the vital elements for all living creatures, potassium exists in all living cells. Potassium is a very soft metal of light grey color which is very reactive with air and other chemical compounds. It is considered to be the 7th most abundant chemical element in the earth crust and it is usually processed from potassium chloride, which is quite abundant too. Potassium is essential for the cells of living organisms to maintain proper electrolyte and fluid balance. Daily dose of potassium for a human body is close to 7 grams, and we receive it mainly from foods like chocolate, nuts, bananas, potatoes, raisins, etc. This chemical element is used for producing fertilizers, and potassium also is important for producing glass. Various compounds involving potassium are heavily used in pharmaceutical industry.
Properties of Potassium Element
| Atomic Number (Z) | 19 |
|---|---|
| Atomic Symbol | K |
| Group | 1 |
| Period | 4 |
| Atomic Weight | 39.0983 u |
| Density | 0.862 g/cm3 |
| Melting Point (K) | 336.53 K |
| Melting Point (℃) | 63,7 °C |
| Boiling Point (K) | 1032 K |
| Boiling Point (℃) | 774 °C |
| Heat Capacity | 0.757 J/g · K |
| Abundance | 20900 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Alkali metal |
| Electronegativity (Pauling) χ | 0.82 |
| Ionization Energy (eV) | 4.34066 |
| Atomic Radius | 220pm |
| Covalent Radius | 196pm |
| Van der Waals Radius | 275 |
| Valence Electrons | 1 |
| Year of Discovery | 1807 |
| Discoverer | Davy |
What is the Boiling Point of Potassium?
Potassium boiling point is 774 °C. Boiling point of Potassium in Kelvin is 1032 K.
What is the Melting Point of Potassium?
Potassium melting point is 63,7 °C. Melting point of Potassium in Kelvin is 336.53 K.
How Abundant is Potassium?
Abundant value of Potassium is 20900 mg/kg.
What is the State of Potassium at Standard Temperature and Pressure (STP)?
Atomic Number Of Potassium-39
State of Potassium is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure.
When was Potassium Discovered?
Potassium was discovered in 1807.
Atomic Number Of Potassium 37
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