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Atomic number is the number of protons in the nucleus of an atom. Therefore, sodium's atomic number is always 11, even if it loses 1 electron. However, when a sodium atom loses 1 electron, it will form an ion with a 1+ charge.

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What is the electron configuration of an atom with the atomic number of 11?

The electron configuration of an atom with the atomic number of 11 (which corresponds to the element sodium) is 1s2 2s2 2p6 3s1.


What is the atomic number of sodium atom and sodium ion?

The atomic number of a sodium atom is 11, as it has 11 protons in its nucleus. When a sodium atom loses one electron to form a sodium ion, it becomes a Na+ ion which still retains the atomic number of 11, as the number of protons in the nucleus remains the same.


How many electron are in an neutral atom of sodium?

11 electrons in a neutrally charged atom of sodium . It is the same number as the number of protons and the Atomic Number. However, the sodium ion (NOT Atom) has lost one electron , so there are now 11 protons(+), and 10 electrons(-). Hence 11(+)10(-)= 1(+) Hence the sodium ion is written as 'Na(+)'.


Hydrogen lithium and sodium all have one valence electron Which element has the smallest atomic radius?

Among hydrogen, lithium, and sodium, hydrogen has the smallest atomic radius because it has the fewest number of electron shells and the smallest number of electrons, leading to a smaller atomic size.


The atomic number of sodium?

Sodium's atomic number is 11.


Does sodium have ten neutrons?

Actually, the element Sodium has eleven (11) electrons. You can tell by its Atomic number. (The number at the top left side of the element's box.)The Atomic number is both the element's proton and electron number.


Does mg have the same number of atomic shells as na?

No, magnesium (Mg) has 3 atomic shells while sodium (Na) has 2 atomic shells. The number of atomic shells is determined by the number of electron shells in an atom.


Is na an element?

Yes. Na is the chemical symbol for Sodium. Sodium is an Alkali Metal in Group 1 of the Periodic Table. Sodium has the atomic number 11, has 3 electron shells with 1 electron in the outer shell.


What is the atomic number for sodium?

The atomic number for sodium is 11.


How many atomic number does a sodium atom have?

Sodium is a metal element. Atomic number of it is 1.


What is the symbol and atomic number for sodium?

Sodium symbol is Na and its atomic number is 11.


What is the atomic number and symbol of sodium?

The atomic number of sodium is 11, and the symbol is Na.