SSC MTS EXAM

Detailed explanation-1: -In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

Detailed explanation-2: -The modern periodic table lists the elements in order of increasing atomic number (the number of protons in the nucleus of an atom). Historically, however, relative atomic masses were used by scientists trying to organise the elements.

Detailed explanation-3: -In the modern periodic table, the elements are arranged according to their atomic number-not their relative atomic mass . In the periodic table the elements are arranged into: rows, called periods, in order of increasing atomic number. vertical columns, called groups, where the elements have similar properties.

Detailed explanation-4: -The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom of that element.