Selenium is a chemical element with the symbol Se and atomic number 34.
What element has 34 protons and 46 neutrons?
Selenium (Se). Diagram of the nuclear composition and electron configuration of an atom of selenium-80 (atomic number: 34), the most common isotope of this element. The nucleus consists of 34 protons (red) and 46 neutrons (blue).
What has 36 electrons and 46 neutrons?
#36 – Krypton – Kr.
Which element has a total of 29 electrons?
#29 – Copper – Cu.
Why does selenium have 45 neutrons?
The atomic number of selenium is 34. Since atomic number represents number of protons, that will be 34. Take the difference of the mass number and the atomic number to get the number of neutrons. So, 79-34 will get you 45 neutrons.
How do you find the electrons?
The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).
Does selenium give or take electrons?
Because of its electron configuration, you may find selenium bound to two halogens that each offers the selenium atom one electron.
How many electrons does selenium gain and lose?
loss of 2 electrons.
Does selenium want to gain or lose electrons?
Octet Rule
In order to become stable, selenium must obtain the same configuration as xenon. To do this, selenium gains 2 electrons.
How many bonds can selenium make?
Selenium is a nonmetal in group 6A , and therefore has 6 valence electrons. In order to obey the octet rule, it needs to gain 2 electrons. It can do this by forming 2 single covalent bonds.
What is the charge of selenium?
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.
How many stable electrons does selenium have?
Answer 2… Are six electrons are in the outermost shell allow selenium to be a stable atom, 34! There is one electron in the 3s orbital in a sodium atom. So, to make selenium to be a stable molecule, it should need to accept 2 electrons.
What is the highest energy level?
What is it meant by the highest occupied energy level in an atom? The highest occupied energy level in an atom is the electron-containing main energy level with the highest number.
What does selenium like to bond with?
Selenium is a fairly reactive element. It combines easily with hydrogen, fluorine, chlorine, and bromine. It reacts with nitric and sulfuric acids. It also combines with a number of metals to form compounds called selenides.
What is the chemical symbol of selenium?
Selenium (Se), a chemical element in the oxygen group (Group 16 of the periodic table), closely allied in chemical and physical properties with the elements sulfur and tellurium. Selenium is rare, composing approximately 90 parts per billion of the crust of Earth.
What has 32 protons and 33 electrons?
#32 – Germanium – Ge.