Oh, dude, like, sodium has 11 electrons, right? So, it's got 3 subshells: 1s, 2s, and 2p. Each subshell can hold a certain number of electrons based on some fancy rules, but who really cares about that, right? Just know that sodium's got 3 subshells chillin' in there.
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The K shell is the first shell in an atom and has only one subshell, which is the 1s subshell. This subshell can hold up to 2 electrons.
Sodium is a metal element. Atomic number of it is 1.
Its atomic number is 11 and its mass is 22.99. This atom is a sodium atom.
The difference in mass between a sodium atom and a sodium ion (supposing Na+) is 9.10938188 × 10-31kg (the mass of an electron). This is due to the sodium atom losing an electron to form an ion. In order to attain the mass of a single sodium atom you need to divide the molar massn (mass number) of sodium by avogadro's number. You can then find the mass of the ion by subtracting the mass of an electron from the mass of a sodium atom.
There are a total of 11 electrons in Sodium.
there are 11 protons and 11electrons
In a lithium atom, the energy of the 2s subshell is lower than the energy of the 2p subshell.
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Sodium is a metal element. Atomic mass number of it is 23.
The answer cannot be uniquely determined from the information given.
One Mn atom contains 5 electrons in it's 3d subshell, all of which are unpaired.
The atomic number of an atom is equal to the number of protons it contains, which in this case is 11. Sodium has an atomic number of 11, so the atom described is indeed a sodium atom.
The neutral atom of sodium has 11 electrons.
The atomic number of an element gives its number of protons per atom. Sodium's atomic number is 11. Thus, sodium has 11 protons per atom.
Neutral arsenic has 33 protons and 33 electrons. The first 33 electron orbitals are filled as 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3. The superscripts above these subshells is the number of electrons in them.
The K shell is the first shell in an atom and has only one subshell, which is the 1s subshell. This subshell can hold up to 2 electrons.