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6.
Valence electrons are the electrons in the s and p orbitals. Keeping this in mind, Se has the 4s orbitals filled (2 electrons) and has 4 electrons filled in the 4p orbital (4p4). 2+4 = 6.
Wiki User
∙ 15y ago
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∙ 13y agoNeutral selenium has 34 protons and 34 electrons. Its electron configuration is given as 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4. This configuration has 6 valence electrons, but we're dealing with Se2-, so we need to add two electrons to that, giving us a total of 8 valence electrons.
Wiki User
∙ 11y agoSe has 6 valence electrons, but if you add the ion Se2- you're going to be gaining 2 electrons, in which you'll have 8 valence electrons.
Wiki User
∙ 13y agoSelenium has 6 valence electrons.
Wiki User
∙ 14y agoSelenium has 6 valence electrons.
Wiki User
∙ 10y ago6 valence electrons
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∙ 9y ago6
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How many protons neutrons and electrons does selenium-55 have?
I don't know Se-55.
What is the symbol for selenium atoms gain two electrons?
The symbol is Se(2-).
Which atoms have six valence electrons in their valence shell?
The atoms with six valence electrons are the elements of group sixteen. This list includes O, S, Te, Se, and Po. If you would like to answer this yourself, just remember that the last digit of the group number is typically the number of valence electrons that you will have. The exceptions of course are the transitional metals from group 3 to 12 and the lanthanides and actinides like uranium and plutonium. These have 2 valence electrons.
What element has 34 electrons?
Copper is the element.It has 29 protons and 33 neutrons.
Which element has 46 neutrons and 34 protons?
Selenium is an element which contains 34 protons. With these 34 protons, it also contains 45 electrons. SE (selenium's symbol) is mainly used TV cameras and photoelectric cells. The element was discovered in 1817 by Jons Berzelius.
What ion will be formed by a selenium atom when it has a stable set of valence electrons?
Se2-Se 2-
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?
They both have 6 valence electrons. Oxygen and Selenium are in the same group.
What atoms tend to gain two electrons to form a 2- anion?
se and sometimes gain electrons. Atoms with eight valence electrons do not easily lose electrons
What is subance?
Selenium (Se) is a solid non-metal element (#34). It has two valence electrons, meaning that it reacts similarly to sulfur and oxygen.
What subance is selenuim?
Selenium (Se) is a solid non-metal element (#34). It has two valence electrons, meaning that it reacts similarly to sulfur and oxygen.
How many protons neutrons and electrons does selenium-55 have?
I don't know Se-55.
How many protons neutrons and electrons does selenium-50 have?
I don't know Se-50.
What is a Picture for electron configuration of selenium?
34Se: [Ar] 4s2 3d10 4p4 34Se: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 by picture I assume you mean the orbital diagram. This shows the valence electrons around the chemical symbol, which, in this case is "Se". The number of Valence Electrons that Selenium contains is "6", because in the 4th energy level, it contains 6 electrons.
How many protons neutrons and electrons are in a selenium atom?
Selenium (Se) has an atomic number of 34 which means in a balance atom Se will have 34 protons and 34 electrons then Se has a mass of 79 so to get the neutrons we minus the protons from the mass and we get 45 final answer: Neutrons: 45 Protons:34 Electrons: 34
What is the symbol for selenium atoms gain two electrons?
The symbol is Se(2-).
Which atoms have six valence electrons in their valence shell?
The atoms with six valence electrons are the elements of group sixteen. This list includes O, S, Te, Se, and Po. If you would like to answer this yourself, just remember that the last digit of the group number is typically the number of valence electrons that you will have. The exceptions of course are the transitional metals from group 3 to 12 and the lanthanides and actinides like uranium and plutonium. These have 2 valence electrons.
What is selenium chemical symbol?
Se is the symbol for Selenium.
