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It goes 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p...
it goes according to the principal quantum number, l.
the subshells (or energy levels) have corresponding letters...
0th sublevel: s
1st sublevel: p
2nd sublevel: d
3rd sublevel: f
4th: g
5th: h
6th: i
etc.
usually, we dont use energy levels above the f subshell.
What else can I help you with?
Which energy sublevel is being filled by the elements Rb to Sr?
The energy sublevel being filled by the elements Rb (rubidium) to Sr (strontium) is the 5s sublevel. These elements are in the fifth period of the periodic table, and in period 5, the s sublevel starts to fill up with electrons.
In which period and group does an electron first appear in an f orbital?
An electron first appears in an f orbital in the period 6 and group 3 of the periodic table. This is when the f sublevel starts to fill in elements such as lanthanum (La), which has a electron configuration [Xe] 5d1 6s2.
Which element has 3 electrons in the 2p sublevel?
Aufbau says that the sublevels fill 1s2, 2s2, 2p6. That would mean that you must have filled 1 and 2 s (=4) and 3 more. Last I checked, 3 + 4 = 7. Which element has 7 electrons? I'll give you a hint: its atomic number is 7. Another hint: its symbol is N.
What sublevel are filling across the Transition Elements?
Transition elements typically fill the 3d and 4s sublevels across the periodic table. As you move across the transition elements from left to right, electrons are added to the 3d sublevel until it is full, before filling the 4s sublevel.
How many electrons fill the sixth energy level?
The sixth energy level can hold up to 72 electrons, with each sublevel accommodating a specific number of electrons: s sublevel = 2 electrons, p sublevel = 6 electrons, d sublevel = 10 electrons, and f sublevel = 14 electrons.
Which energy sublevel is being filled by the elements Rb to Sr?
The energy sublevel being filled by the elements Rb (rubidium) to Sr (strontium) is the 5s sublevel. These elements are in the fifth period of the periodic table, and in period 5, the s sublevel starts to fill up with electrons.
In which period and group does an electron first appear in an f orbital?
An electron first appears in an f orbital in the period 6 and group 3 of the periodic table. This is when the f sublevel starts to fill in elements such as lanthanum (La), which has a electron configuration [Xe] 5d1 6s2.
How many electrons fill a 6s sublevel?
The 6s sublevel can hold a maximum of 2 electrons.
How many electrons are needed to fill the outer shell of sodium?
Two electrons are needed to fill the outer shell of a sodium atom. The outer shell for sodium is the 3s sublevel. A neutral sodium atom has one electron in its 3s sublevel. Since atoms undergo chemical bonding in order to gain a noble gas electron configuration, called an octet, sodium atoms will lose their single 3s electron, becoming sodium atoms with a 1+ charge. By doing this, sodium ions become isoelectric with the noble gas neon, and achieve an octet, becoming stable.
Which energy sublevel is being filled by the elements Y-Cd?
The elements Yttrium (Y) and Cadmium (Cd) fill the 4d energy sublevel.
Which element has 3 electrons in the 2p sublevel?
Aufbau says that the sublevels fill 1s2, 2s2, 2p6. That would mean that you must have filled 1 and 2 s (=4) and 3 more. Last I checked, 3 + 4 = 7. Which element has 7 electrons? I'll give you a hint: its atomic number is 7. Another hint: its symbol is N.
What is the hunds principle?
Hund's Rule states that within a sublevel, electrons will fill empty orbitals before pairing up. This is to maximize the spin of the electrons and stabilize the atom. It helps to explain the arrangement of electrons in an atom's electron cloud.
Why does 4s sub level fill before the 3d sub level?
Atom sublevels fill according to the Aufbau principle which states that electron levels are filled according to their energy, the lowest are filled first, then followed by higher energies. To answer your question, 4s has a lower energy level than 3d.A full electron configuration:1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s6 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6Actually the above answer is incorrect and so is the question.Contrary to what is stated in the vast majority of textbooks, the 4s orbital does not fill before the 3d, and nor does it have lower energy.If you have access to the Journal of Chemical Education look for the article by Eugen Schwarz. April 2010, p. 444.eric scerri PhDUCLAPlease also seeericscerri.com/for many educational resources.
What sublevel are filling across the Transition Elements?
Transition elements typically fill the 3d and 4s sublevels across the periodic table. As you move across the transition elements from left to right, electrons are added to the 3d sublevel until it is full, before filling the 4s sublevel.
How many electrons fill the sixth energy level?
The sixth energy level can hold up to 72 electrons, with each sublevel accommodating a specific number of electrons: s sublevel = 2 electrons, p sublevel = 6 electrons, d sublevel = 10 electrons, and f sublevel = 14 electrons.
Why does the 4S orbital begin to fill before the 3D orbital?
Electrons occupy orbitals in a definite sequence, filling orbitals with lower energies first. Generally, orbitals in a lower energy level have lower energies than those in a higher energy level. But, in the third level the energy ranges of the principal energy levels begin to overlap. As a result, the 4s sublevel is lower in energy than the 3d sublevel, so it fills first.
Which energy levels in the electron cloud do the electron fill first?
Electrons fill the lowest energy levels in the electron cloud first according to the aufbau principle, which states that electrons will occupy the lowest available energy levels before moving to higher ones. This process follows the order of filling based on energy level (or shell) and sublevel (s, p, d, f).
