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What is selenium's mass number?
Selenium's mass number is 79. It is the sum of the number of protons and neutrons in the nucleus of a selenium atom.
Phosphorus sulfur and selenium which has the largest atom?
Selenium has the largest atom among phosphorus, sulfur, and selenium because of its larger atomic radius. This is due to selenium having more electron shells and thus a greater distance from the nucleus.
What is the mass no of selenium?
663.7 is the melting point of selenium.. and its true,, i promise ,, mmmwhhahahaah
How many electrons are in a selenium ion?
Selenium typically has 34 electrons in its neutral state. To determine the number of electrons in a selenium ion, you need to know the specific charge of the ion. For example, a selenium ion with a charge of +2 would have 32 electrons, while a selenium ion with a charge of -2 would have 36 electrons.
Alpha decay of selenium-78?
Since an alpha particle is simply two protons and two neutrons bound together, or He2+, the alpha decay of selenium-78 is easily determined. Selenium-78 has 34 protons and 44 neutrons. Subtract 2 from each of these due to the loss of the alpha particle and you have 32 protons and 42 neutrons. This new atom is germanium-74.
What particles make up an atom of selenium-80?
An atom of selenium-80 contains 34 protons, 46 neutrons, and 34 electrons. Protons and neutrons are located in the nucleus of the atom, while electrons orbit around the nucleus.
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 nuclear decay equation for selenium-75?
The nuclear decay equation for the decay of selenium-75 (75Se) by beta decay is: ( ^{75}{34}Se \rightarrow ^{75}{35}Br + e^- + \overline{\nu_e} ) This equation represents the transformation of a selenium-75 nucleus into a bromine-75 nucleus, an electron, and an electron antineutrino.
How many neutrons are in Se?
Since Selenium has an atomic number of 34, it has 34 protons and electrons at its elemental resting state. The most common isotopes have 44 and 46 neutrons, which you get from subtracting the atomic number from the atomic mass.
What is the correct name for SeF6?
This compound is called selenium hexafluoride.
How many moles of selenium in selenium tetra-fluoride?
There is one mole of selenium in one mole of selenium tetrafluoride, as the formula for selenium tetrafluoride is SeF4. Therefore, there is 1 mole of selenium in 1 mole of selenium tetrafluoride.
How many shells are there in selenium atom?
A selenium atom typically contains 34 electrons distributed in different shells around the nucleus. The electrons are arranged in energy levels or shells, with the first shell holding a maximum of 2 electrons, the second shell holding up to 8 electrons, the third shell holding up to 18 electrons, and the fourth shell holding up to 6 electrons for selenium.
