Question

Which elements are denoted by?

a.1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s², 4p⁶, 4d¹⁰, 5s², 5p⁶
b.1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s², 4p⁶, 4d¹⁰
c.1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s², 4p⁶, 4d¹⁰, 5s²
d.1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s², 4p⁶

Answer 1

The elements denoted by the given electron configurations are part of the periodic table and have unique electron configurations that determine their chemical properties.

Step-by-step explanation:

The elements denoted by the electron configurations 1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s², 4p⁶, 4d¹⁰, 5s², and 5p⁶ are part of the periodic table. These electron configurations represent the filling of the electron orbitals in the respective energy levels of the elements. Each element has a unique electron configuration that determines its chemical properties.