What does Na represent in the periodic table?
Sodium is a chemical element with symbol Na and atomic number 11. Classified as an alkali metal, Sodium is a solid at room temperature.
What is period of Na?
3
Fact box
| Group | 1 | 97.794°C, 208.029°F, 370.944 K |
|---|---|---|
| Period | 3 | 882.940°C, 1621.292°F, 1156.090 K |
| Block | s | 0.97 |
| Atomic number | 11 | 22.990 |
| State at 20°C | Solid | 23Na |
What is the Stablest element?
A stable atom is an atom that has enough binding energy to hold the nucleus together permanently. An unstable atom does not have enough binding energy to hold the nucleus together permanently and is called a radioactive atom.
What does stable mean in periodic table?
In this definition, “stable” means a nuclide that has never been observed to decay against the natural background. Thus, these elements have half lives too long to be measured by any means, direct or indirect. Stable isotopes: 1 element (tin) has 10 stable isotopes. 5 elements have 7 stable isotopes apiece.
What is the electron configuration of Na?
[Ne] 3s¹Sodium / Electron configuration
Which is more metallic N or K?
Metallic character increases as we go down the elements in periodic table due to the ability of the elements to lose the valence electron easily. Here, from given elements, Potassium (K) is placed lower than sodium (Na) in the periodic table. Therefore, potassium (K) has stronger metallic character than sodium (Na).
Which element is in group 14 Period 5?
Tin
Tin. Tin is a chemical element with the symbol Sn (for Latin: stannum) and atomic number 50. It is a main-group metal in group 14 of the periodic table.
Is CS a metal?
Caesium (IUPAC spelling) (also spelled cesium in American English) is a chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F), which makes it one of only five elemental metals that are liquid at or near room temperature.
Is Tennessine a metal?
As a result, tennessine is expected to be a volatile metal that neither forms anions nor achieves high oxidation states. A few key properties, such as its melting and boiling points and its first ionization energy, are nevertheless expected to follow the periodic trends of the halogens.
What is the 126 element?
Unbihexium
| Unbihexium | |
|---|---|
| Pronunciation | /ˌuːnbaɪˈhɛksiəm/ (OON-by-HEK-see-əm) |
| Alternative names | element 126, eka-plutonium |
| Unbihexium in the periodic table |
Why is carbon 13 stable?
Isotopes of Carbon The next heaviest carbon isotope, carbon-13 (13C), has seven neutrons. Both 12C and 13C are called stable isotopes since they do not decay into other forms or elements over time.
What was the original name of the element na?
In 1809, Ludwig Wilhelm, a German physicist and chemist, proposed the name Natronium for it. Its chemical abbreviation ‘Na’ was published in the system of atomic symbols in 1814 which is derived from its Latin name ‘natrium’ [2].
What is the periodic table classification of sodium?
Sodium Periodic Table Classification Group 1 Period 3 State at 20C Solid Color Silvery-white Electron Configuration [Ne] 3s1 Electron Number 11
What is the periodic table of elements and compounds?
The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. The electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.
Why is sodium placed in Group 1 of the periodic table?
It is placed in group 1 of periodic table as it has a single electron in its outer most shell that it readily donates, creating a positively charged ion, the Na+ cation. At room temperature Sodium is soft, silvery-white metal which can be easily cut with a knife. It is highly reactive.