Table of Contents
- 1 What is the mass of one atom of selenium?
- 2 What is the atomic mass of selenium 79?
- 3 How do you find the molar mass of selenium?
- 4 What is the atomic number of Selenium 75?
- 5 What is the formula for selenium?
- 6 How many total atoms are in selenium hexafluoride?
- 7 Who is the inventor of the element selenium?
- 8 How is selenium related to sulfur and tellurium?
What is the mass of one atom of selenium?
78.96
Selenium – Properties Summary
| Element | Selenium |
|---|---|
| Symbol | Se |
| Element Category | Non Metal |
| Phase at STP | Solid |
| Atomic Mass [amu] | 78.96 |
What is the atomic mass of selenium 79?
78.918499
Selenium-79
| PubChem CID | 6335823 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | Se |
| Synonyms | Selenium-79 Selenium Se-79 UNII-W147090X6K W147090X6K Selenium, isotope of mass 79 More… |
| Molecular Weight | 78.918499 |
What is the atomic number and weight of selenium?
34
Selenium is a chemical element with symbol Se and atomic number 34. Classified as a nonmetal, Selenium is a solid at room temperature….Selenium.
| Atomic Mass | 78.97u |
|---|---|
| Electron Configuration | [Ar]4s23d104p4 |
| Oxidation States | +6, +4, -2 |
| Year Discovered | 1817 |
How do you find the molar mass of selenium?
So, grab a Periodic Table and look for selenium, Se . The elements’ molar mass is added at the bottom of the element box. In this case, selenium is said to have a molar mass of 78.96 g mol−1 , which means that every 1 mole of selenium has a mass of 78.96 g .
What is the atomic number of Selenium 75?
The given isotope is Se-75. The atomic number of Se is 34, which is equal to the number of protons and electrons in the atom.
What is the mass number of selenium?
78.96 u
Selenium/Atomic mass
What is the formula for selenium?
Se+6
Selenium(6+)
| PubChem CID | 104869 |
|---|---|
| Molecular Formula | Se+6 |
| Synonyms | selenium(6+) Selenium, ion (Se6+) Q26841201 22537-36-6 |
| Molecular Weight | 78.97 |
| Dates | Modify 2021-11-06 Create 2005-08-08 |
How many total atoms are in selenium hexafluoride?
Mass percentage of the elements in the composition
| Element | Symbol | Number of Atoms |
|---|---|---|
| Selenium | Se | 1 |
| Fluorum | F | 6 |
What is the atomic number of the element selenium?
Selenium has atomic number 34, meaning each atom has 34 protons. The element symbol of selenium is Se. Selenium was discovered jointly in 1817 by Swedish chemists Jöns Jakob Berzelius (1779–1848) and Johan Gottlieb Gahn (1745–1818). Although it is uncommonly found, selenium does exist in relatively pure form, free in nature.
Who is the inventor of the element selenium?
The element symbol of selenium is Se. Selenium was discovered jointly in 1817 by Swedish chemists Jöns Jakob Berzelius (1779–1848) and Johan Gottlieb Gahn (1745–1818). Although it is uncommonly found, selenium does exist in relatively pure form, free in nature.
Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.
Is there such a thing as pure selenium?
Although it is uncommonly found, selenium does exist in relatively pure form, free in nature. Selenium is a nonmetal. Like many nonmetals, it exhibits different colors and structures (allotropes) depending on the conditions.