the answer is 12!
24
A xenon atom contains 54 electrons,
The Third
Cadmium is a d block metal element. Atomic number of it is 48. It has 5 s orbitals filled with electrons.
An atom of xenon contains 54 electrons, the atomic number of xenon.
Arsenic has three electrons occupying the three 4p orbitals in its valence shell. Hund's first rule tells us that they will each occupy separate orbitals before they start to pair up. So there are three half-filled orbitals in an arsenic atom.
A xenon atom contains 54 electrons,
5p, 5s
The Aufbau principle states that electrons will fill up the different orbitals in an atom in order, i.e. the s orbitals of an atom will be filled by electrons before the p orbitals.
The Third
Cadmium is a d block metal element. Atomic number of it is 48. It has 5 s orbitals filled with electrons.
Nitrogen has 5 valence electrons. Valence electrons are the electrons that are found in the outer most shell of an atom, and are consequently the electrons that move from atom to atom in the formation of compounds. The reason for this is a result of the electron configuration. A nitrogen atom has 3 orbitals; the 1s orbital, the 2s orbital, and the 2p orbital. In this case, the 2s and 2p orbitals are the valence orbitals, as they have the electrons with the most energy. With 7 protons, a neutral nitrogen atom has 7 electrons. The s orbitals can only hold 2 electrons, and the p orbitals can hold up to 6 electrons. The 1s orbital is filled first, leaving five electrons, then the 2s orbital is filled, leaving 3 electrons, and then these remaining electrons fill the 2p orbital halfway. There are a total of 5 electrons in the 2s and 2p orbitals, and since these orbitals have the most energy, there are 5 valence electrons.
An atom of xenon contains 54 electrons, the atomic number of xenon.
Arsenic has three electrons occupying the three 4p orbitals in its valence shell. Hund's first rule tells us that they will each occupy separate orbitals before they start to pair up. So there are three half-filled orbitals in an arsenic atom.
For one, the atom's outer circle is completely filled with the maximum number of electrons - it's valence orbitals are filled.
The electron configuration of an atom is the arrangement of electrons in the electron cloud around the nucleus of the atom. This is an indication of the different orbitals that are occupied by electrons in the atom.
Half filled orbitals or empty orbitals
5 shells filled, no electrons left over.