A selenium atom has 36 inner shell electrons. This includes electrons in the first (2 electrons) and second (8 electrons) energy levels, as well as 18 electrons in the third energy level.
The very inner shell of an atom is the 1st shell and can only contain 2 electrons.
An atom of selenium will gain two electrons to achieve an octet because it has six valence electrons in its outer shell. By gaining these two electrons, selenium will have a total of eight electrons in its outer shell, fulfilling the octet rule.
In a sodium atom, there are 2 electrons in the innermost shell. The first shell can hold a maximum of 2 electrons. Sodium has an electron configuration of 2-8-1, so the inner shell contains 2 electrons.
A neutral neon atom has 8 electrons in its outer shell. Neon has a total of 10 electrons, with 2 in the inner shell and 8 in the outer shell.
The selenium atom shown below has 2 extra electrons, so it would likely bond with an atom that needs 2 electrons to fill its outer shell. For example, selenium could form a stable ionic compound by bonding with an atom like oxygen, which has a tendency to gain 2 electrons to achieve a full outer shell configuration.
there are 2 electrons in the inner shell of a hydrogen atom.
The very inner shell of an atom is the 1st shell and can only contain 2 electrons.
Valence electrons are the electrons in the outermost shell of an atom. The ones in the inner shell are known as core electrons.
Selenium needs two more electrons.
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.
An atom of selenium will gain two electrons to achieve an octet because it has six valence electrons in its outer shell. By gaining these two electrons, selenium will have a total of eight electrons in its outer shell, fulfilling the octet rule.
Valence electrons are the electrons in the outermost shell of an atom. The ones in the inner shell are known as core electrons.
In a sodium atom, there are 2 electrons in the innermost shell. The first shell can hold a maximum of 2 electrons. Sodium has an electron configuration of 2-8-1, so the inner shell contains 2 electrons.
An electron in an atom's outer shell is shielded from the nucleus by inner-shell electrons. These inner-shell electrons repel the outer electron, reducing the net attractive force from the nucleus. This shielding effect helps explain why outer-shell electrons are more loosely bound and easier to remove during chemical reactions.
There are 3 shells total in the atom of Chlorine. The first shell has 2 electrons because the first shell of any atom can only hold up to a maximum of 2 electrons. The second shell holds 8 electrons because the second shell of any atom can only hold 8 electrons maximum. The third shell holds 7 electrons in the Chlorine atom, but the third shell of any atom can hold up to 18 electrons as a maximum.
A neutral neon atom has 8 electrons in its outer shell. Neon has a total of 10 electrons, with 2 in the inner shell and 8 in the outer shell.
Inner shell electrons are electrons that are located closer to the nucleus of an atom, shielded by outer electron shells. They have lower energy levels compared to outer shell electrons and are generally not involved in chemical reactions.