Table of Contents
What ion will be formed by selenium?
Selenium(4+)
| PubChem CID | 104791 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | Se+4 |
| Synonyms | selenium(4+) Selenium, ion(4+) 22541-55-5 |
| Molecular Weight | 78.97 |
What ion will be formed by the selenium atom shown below when it has a stable set of valence?
D. A metal and a nonmetal atom gain electrons. A user is constructing an ionic bond between beryllium and chlorine and has reached the stage below. What should the user do next?
When selenium atom forms an ion it will?
Selenium (Se) has an atomic number, and belongs to group 6A. So it will have 6 valence electrons. When two electrons are gained by selenium atom, it forms an anion having charge of -2.
What ion is selenium most likely to form?
Selenium has three common forms: Selenate, a water-soluble anion. Selenite, a virtually water-insoluble anion….To summarize:
- Selenate has a charge of (-2), with an Se ion of charge +6.
- Selenite has a charge of (-2), with an Se ion of charge +4.
- Elemental Se has a charge of 0.
How does a selenium atom become stable?
The most stable atom or ion is seen when the atom or ion obtains the electron configuration of a noble gas. All the noble gases possess a fully filled atomic electron configuration, thus forming the most stable configuration.
How many electrons does a selenium ion have?
This atom of selenium has 34 protons, 45 neutrons, and 36 electrons. The atomic number of an element gives the number of protons found in the nucleus of each atom of that element. The atomic number is the whole number found in the box with each element on the periodic table.
What ion will be formed by the phosphorus atom shown below when it has a stable set of valence electrons?
It has a valency 3. If an atom gains an electron, it acquires a negative charge. Therefore, if the phosphorus atom gains 3 electrons to have a stable set of valence electrons, it will acquire a 3 unit negative charge.
What ion will be formed by the phosphorus atom?
Phosphorus has 5 valence electrons. It can lose 5 electrons to form a +5 ion and it can gain 3 electrons to form a -3 ion. Between the two, the more…
How many stable electrons does selenium have?
The six electrons in the outermost shell allow selenium to have a variety of valence numbers. Selenium compounds have been found that have valences of -2, 4, and 6. Speaking of the number six, selenium is found to have six naturally occurring isotopes.
Would an atom of selenium gain or lose electrons to form a stable ion?
loss of 2 electrons. 2.
What is the charge of a stable lithium ion?
+1
Remember the first shell contains 2 electrons and is stable. Lithium atom has lost an electron to become a positively charged ion, with a charge of +1.
What is a stable set of valence electrons?
The octet rule states that an atom is most stable when there are eight electrons in its valence shell. Atoms with less than eight electrons tend to satisfy the duet rule, having two electrons in their valence shell. By satisfying the duet rule or the octet rule, ions are more stable.