Question

What is the difference between Na and Na+ in terms of electrons?

Answer 1

The charge of the sodium atom is neutral, while the charge of sodium ion is positive(+1).

The sodium atom reacts with hydrogen gas and oxygen gas.

2Na + H2 --> 2NaH

2Na + O2 --> Na2O2

The sodium ion does not react with hydrogen gas and oxygen gas.

The conductivity of Na atom is very good, while the sodium ion is a poor conductor of heat and electricity.

The Na atom is found in pure form, while Na ion has to be combined with anions to form a stable compound.

Answer 2

The atomic number of Na is 11
Number of electrons are 11
In a Na+ ion electrons=11-1=0
Since, in a positive ion no. of electrons=no. of protons -total positive charge.


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