Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be

Number of electrons in nitrogen = 7 and number of electron is oxygen = 8 we know that formula of nitrate ion is NO3− we also know that number of election = (1 x Number of electrons in nitrogen) + (3 x number of electrons in oxygen) + 1=(1×7)+(3×8)+1=32