What is se on the periodic table?

selenium (Se), a chemical element in the oxygen group (Group 16 [VIa] of the periodic table), closely allied in chemical and physical properties with the elements sulfur and tellurium. Selenium is a metalloid (an element intermediate in properties between the metals and the nonmetals).

What is SE called in chemistry?

Selenium is a chemical element with symbol Se and atomic number 34.

What does the S stand for in chemistry?

(s) indicates that the substance is in a solid state. an alternative way of representing a substance in a solid state. (aq) indicates that the substance is dissolved in water – the aq comes from aqueous.

What element is similar to se?

Nonmetal
MetalloidChalcogenPeriod 4 element
Selenium/Chemical series

What is the charge for SE?

Selenium has the electronic configuration of . It’s easier for it to accept 2 valence electrons than donate its 6 valence electrons which requires higher energy. Therefore, the ion of selenium has the charge of 2-. It’s known as selenide ion.

How many protons are in SE?

34
Selenium/Atomic number

Is Silicon an element or compound?

silicon (Si), a nonmetallic chemical element in the carbon family (Group 14 [IVa] of the periodic table).

What does S+ mean in chemistry?

S+ partial positive S- partial negative.

What ion will se form?

+4
Selenite has a charge of (-2), with an Se ion of charge +4.

Is se an anion?

A selenide is a chemical compound containing a selenium anion with oxidation number of −2 (Se2−), much as sulfur does in a sulfide. The chemistry of the selenides and sulfides is similar. Similar to sulfide, in aqueous solution, the selenide ion, Se2−, is prevalent only in very basic conditions.

What is the ion charge of Se?

0
Elemental Se has a charge of 0.

What is the 20th element on the periodic table?

Calcium (Ca) is the 20th element on the periodic table. Its atomic weight is 40.08, 20 protons, 20 electrons, 20 neutrons.

What are the three elements on the periodic table?

The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block.

What are the semiconductors in the periodic table?

The study of semiconductor materials began in the early 19th century. The elemental semiconductors are those composed of single species of atoms, such as silicon (Si), germanium (Ge), and tin (Sn) in column IV and selenium (Se) and tellurium (Te) in column VI of the periodic table.

What chemicals are in the periodic table?

The periodic table of the chemical elements. A chemical element is a type of atom that is distinguished by its atomic number; that is, by the number of protons in its nucleus. Common examples of elements, also shown in peridic table, are hydrogen, carbon, nitrogen, and oxygen.