Question

Multiply the atomic number of hydrogen by the number of electrons in mercury, which has an atomic number of 80. What is the result?

Answer 1

From the modern periodic table, hydrogen has only one proton and therefore its atomic number is also one (1). Mercury with its atomic number eighty (80) contains 80 electrons. The following illustration shows how we can obtain the result when multiplying the atomic number of hydrogen and the number of mercury.

1×80= 80