Question

In the modern periodic table, elements are ordered

(a) according to decreasing atomic mass.
(b) according to Mendeleev's original design.
(c) according to increasing atomic number.
(d) based on when they were discovered.

Answer 1

In the modern periodic table, elements are ordered according to increasing atomic number.

Step-by-step explanation:

In the modern periodic table, elements are ordered according to increasing atomic number. This means that elements are arranged in order of the number of protons in their nucleus. Atomic number represents the number of protons in an atom's nucleus and is unique to each element. This ordering allows for the classification and organization of elements based on their properties and trends.

Learn more about ordering of elements in the periodic table