How are elements arranged on the periodic table?
Group of answer choices
By their atomic mass
By their atomic number
Alphabetical order
By their atomic number.
The elements on the periodic table are arranged by their atomic number. The atomic number corresponds to the number of protons an atom of that element has in its nucleus. The periodic table starts with hydrogen, which has an atomic number of 1, and progresses in ascending order.
To verify the arrangement of elements on the periodic table, you can refer to a reliable source such as a chemistry textbook, scientific website, or even a physical periodic table. By locating an element and checking its atomic number, you can confirm the order in which elements are arranged on the periodic table.
The periodic table is not arranged in alphabetical order. While elements may be grouped together based on similar properties into columns and blocks, the primary organizing principle is the atomic number.