What is Displacementsubject Physics,

Explanation:

Displacement is the distance travelled in a specific direction. Unlike distance, displacement is a vector quantity with both magnitude and directional attribute.

When we specific displacement values, we must indicate the direction of motion to complete its description.

For example, 50m is a distance value. It has a magnitude but no direction.

When we say 50m due south, this is a displacement because both magnitude and direction are accurately specified and defined.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.