Helium atoms are chemically unreactive because
...Helium atoms are chemically unreactive because
there are no electrons around the nucleus
the number of protons equals the number of electrons
there are equal number of protons and neutrons in the nucleus
the outer electron shell is completely filled
the atoms contain only protons
Correct answer is D
No explanation has been provided for this answer.
Which of the following ions requires the largest quantity of electricity for dischar...
Glucose gives a brick-red precipitate with Fehling's solution because it is ...
Which of the following is NOT involved in the extraction of metals from their ores?...
Which of the following statements about a chemical system in equilibrium is correct/ The ...
When bromine is added to ethene at room temperature, the compound formed is ...
The method that can be used to convert hard water to soft water is ...
The ammonium compound used in the manufacture of dry cells is ...