The first shell only hold 2 electrons, so this element has 1 electron in its first level.
Hydrogen
The element with an electron arrangement of 2, 8, and 7 is fluorine (F), which has 9 electrons. The first energy level can hold a maximum of 2 electrons, the second level can hold a maximum of 8 electrons, and the third level can hold a maximum of 7 electrons for a total of 17 electrons in its neutral atom.
The element with 10 electrons and 10 neutrons is Neon. Neon has the atomic number 10, which corresponds to the number of electrons in a neutral atom, and its most common stable isotope has 10 neutrons.
The element with 2 electrons in the second ring is helium. Helium has 2 electrons in its second energy level.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
The correct electron configuration for an element with 5 electrons, which is boron (B), is 1s² 2s² 2p¹. This indicates that the first energy level (1s) contains two electrons, the second energy level (2s) contains two electrons, and one electron is in the 2p subshell. Thus, the total adds up to five electrons.
nobel gases has few electron in the outer energy level
The maximum number of electrons that can be found in the first energy level (or inner level) of an element is 2 electrons. This is because the first energy level only has one subshell, which can accommodate a maximum of 2 electrons.
3
there are two electrons in the first energy level of every element except for hydrogen which only has one electron in the first energy level.
This element is likely phosphorus (P), which has 15 electrons in total. With 5 electrons in the second energy level, phosphorus has 2 energy levels: the first energy level with 2 electrons and the second energy level with 5 electrons.
The first element with an electron in the second energy level is lithium. Lithium has three electrons, with two in the first energy level and one in the second energy level.
The element sulfur (S) has 16 electrons. It has 2 electrons in its first energy level, 8 electrons in its second energy level, and 6 electrons in its third energy level.
An element with two energy levels can have a maximum of 8 electrons. The first energy level can hold up to 2 electrons, while the second energy level can hold up to 6 electrons.
The element with 2 electrons in the 1s sub-level, 2 electrons in the 2s sub-level, and 2 electrons in the 2p sub-level is carbon (Atomic number: 6).
The element with an electron arrangement of 2, 8, and 7 is fluorine (F), which has 9 electrons. The first energy level can hold a maximum of 2 electrons, the second level can hold a maximum of 8 electrons, and the third level can hold a maximum of 7 electrons for a total of 17 electrons in its neutral atom.
Helium (He) has the electronic configuration 2.2 since it has 2 electrons in the first energy level and 2 electrons in the second energy level.
The element with atomic number 56 is barium, a group 2 alkaline earth metal. Its atoms have two valence electrons in the 6s sublevel.