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Selenium and Oxygen are part of the family on the periodic table. Columns=families, and rows= periods. Oxygen and selemiun also have the same amount of electrons on their outershell. All this can be found on any website with a Periodic Table like webelements.com, or in a chemistry book.
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Which is more metallic oxygen vs selenium?
Selenium is more metallic than oxygen. Oxygen is a non-metal, while selenium is a metalloid that exhibits some properties of metals.
What is the most common selenium ion?
The most common Selenium ion is Se2- the selenide ion. It is in the same group as oxygen and its most common ion in the oxide ion O2-.
What is a common oxidation number that is -2?
Generally for group 16 elements, like oxygen, sulphur, selenium.
What does selenium and oxygen combined together make?
Selenium dioxide, SeO2
What is the most common isotope for selenium?
The most common isotope of selenium is selenium-80, which makes up about 50% of naturally occurring selenium.
What element is less dense selenium or oxygen?
Oxygen is less dense than selenium. Oxygen has a density of about 1.43 grams per cubic centimeter, while selenium has a density of about 4.81 grams per cubic centimeter.
What is more reactive oxygen or selenium?
Oxygen is more reactive than selenium. Oxygen is a highly reactive element that readily forms compounds with other elements, while selenium is less reactive in comparison. Oxygen's reactivity is evident in its ability to support combustion and oxidation reactions, whereas selenium's reactivity is more limited due to its position in the periodic table.
Is selenium a most common elements found in organisms?
Selenium is not a common element but is necessary.
What is the elemental selenium in selenium dioxide monohydrate?
The elemental selenium in selenium dioxide monohydrate exists as Se(IV) in the +4 oxidation state. It is bonded to two oxygen atoms in a linear configuration. The oxygen atoms are bound to the selenium atom in a double bond.
How many nonmetals in the family oxygen?
Three: oxygen, sulfur, selenium.
How many nonmetals are in the oxygen family?
Three: oxygen, sulfur, selenium.
Compare the number of valence electrons on oxygen atom has with number of valence electrons a selenium atom has Are oxygen and selenium in the same period or group?
Oxygen has 6 valence electrons, while selenium has 6 valence electrons as well. Both oxygen and selenium are in the same group, Group 16 (also known as Group VIA or Group 6) of the periodic table. They are not in the same period – oxygen is in period 2, while selenium is in period 4.
