In the ground state, a sodium atom has 1 electron in the 3rd energy level, in the 3s orbital.
See the link below to see/print a Periodic Table that gives electron configurations for the elements.
All of 11 electrons in sodium are in different electron orbitals: 2 electrons are in 1s orbital, 2 in 2s, 6 in 2p and 1 in the 3s orbital. (This last one is the so-called valence electron)
Those numbers denote electron orbitals, if my chemistry isn't too rusty that is Na (Sodium).
Sodium (11Na) has 2 electrons in the first (1st), 8 electrons in the second (2nd) and one in the (3rd) level.
Sodium
As a neutral atom, sodium possesses 1 electron in its outermost (3rd) energy level. As a 1+ ion, it possesses 8 electrons in its second energy level, forming an octet, which is the optimum number of electrons for sodium to possess in its outermost energy shell.
Sodium atoms do have electrons that are arranged in energy levels. The electron configuration of sodium is 1s22s22p63s1.
All of 11 electrons in sodium are in different electron orbitals: 2 electrons are in 1s orbital, 2 in 2s, 6 in 2p and 1 in the 3s orbital. (This last one is the so-called valence electron)
Those numbers denote electron orbitals, if my chemistry isn't too rusty that is Na (Sodium).
Sodium (11Na) has 2 electrons in the first (1st), 8 electrons in the second (2nd) and one in the (3rd) level.
Both are at the 3rd energy level and both contains the 3s1 orbitals.
Sodium
As a neutral atom, sodium possesses 1 electron in its outermost (3rd) energy level. As a 1+ ion, it possesses 8 electrons in its second energy level, forming an octet, which is the optimum number of electrons for sodium to possess in its outermost energy shell.
One electron in 3s orbital of sodium
11
the element sodium has 1,000,000 million energy levels.
Copper is a transition metal- these often give rise to colored salts. Sodium is an s block metal these are generally colorless. The reason is that transition metals ions have electrons in an outer d orbitals that can be excited to higher energy levels by visible light.
There are 2 electrons in the first energy level, 8 in the second, and 1 in the third.