Mercury is in the 80th position in the periodic table. how many protons does it have? 8 40 80 160

80

Explanation: The atomic number is the number of protons in an atom's nucleus. Since mercury has an atomic number of 80 it has 80 protons.

The correct answer is 80.

Explanation:

The arrangement of the atoms in the periodic table takes place in the order of increasing atomic number. The atomic number is illustrated as the number of electrons or protons present in an atom. Hg or mercury refers to a d block element and exhibits an atomic number 80, therefore, it comprises 80 electrons and 80 protons.

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

the answer is b.) hydrogen bonds between bases.