Question

How to find the electrons of a compound like nh4? with clear examples.

Answer 1

11

Explanation:

nitrogen atomic number 7 so no of electrons are 7 and hydrogen atomic number1 so no of electrons1

finally 7+4(1)=11

Answer 2

NH4 contains 1 nitrogen atom, 4 hydrogen atoms.

To find electrons in a compound you need to find the electrons in the  individual atoms of the compound.

NItrogen atomic number is 7 so it contains 7 electrons.

Hydrogen atomic number is 1 so it contains 1 electrons.

So 4 hydrogen atoms contain four electrons.

Therefore total number of electrons in NH4 is 7+4 = 11 .

Example : Find number of electrons in Fe₂O₃

Iron atomic number is 26 and there are 2 atoms so 52 electrons.

Oxygen atomic number is 8 and there are 3 atoms so it contains 24 electrons.

So in Fe₂O₃ number of electrons is 52 + 24 = 76 .