Which statement describes the number of protons in each atom of an element?(1 point)

Question

The number of protons is given by the mass number, which increases by one moving down in its column in
the periodic table.
The number of protons is given by the atomic number, which increases by one moving from left to right
across each row of the periodic table.
The number of protons is given by the atomic number, which increases by one moving down in its column in
the periodic table.
The number of protons is given by the mass number, which increases by one moving from left to right
across each row of the periodic table.

Answer 1

The correct statement is:

The number of protons is given by the atomic number, which increases by one moving from left to right across each row of the periodic table.

This is because the atomic number is defined as the number of protons in an atom, and it indeed increases sequentially across periods (rows) in the periodic table.