1. What is the electron configuration of bromine atom?

[Ar] 3d¹⁰ 4s² 4p⁵

Explanation:

Using the blocks in the periodic table we can write the electron configuration of bromine

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: