it has 2 electrons i think you can tell by subtracting both numbers together
Carbon has 2 core electrons. Core electrons are the inner electrons of an atom that are not involved in chemical bonding.
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
Nitrogen has 2 core electrons. Core electrons are those that are found in the inner energy levels and are not involved in chemical bonding.
Bromine has 28 total electrons, with 18 being core electrons located in the inner electron shells.
Neon (Ne) has 10 core electrons. Core electrons are the electrons in an atom that are not involved in chemical reactions. For neon, the core electrons are the 1s²2s²2p⁶ electrons, which total 10.
Helium has 2 core electrons. This is because it has 2 electrons in the innermost energy level (K shell), which are considered core electrons.
Helium has 2 electrons.
An atom of helium has 2 electrons.
Helium-4 has 2 electrons.
Helium has 2 valence electrons.
2 electrons as the atomic number of helium is 2
Helium-3 has 1 neutron and 2 electrons. Helium-4 has 2 neutrons and 2 electrons.
2 valence electrons for helium (helium has only 1 shell)
A neutral atom of helium has 2 electrons.
2 electrons
2
helium has 2 electrons as its atomic number is 2