It's gonna be Rb. The rule is that the lower it is and the closer it is to the left, the more reactive it will be.
Why left? Because their valence decreases, and the atom has a stronger desire to bond with other atoms. Alkali metals are considered the MOST reactive group in the periodic table, followed by AEM (alkaline earth metals). Noble gases are the least reactive because their valence's are full and they don't need 2 bond with anyone else. That's why artifacts are placed in noble-gas rich environments; so that they don't ruin and reactions don't occur (the declaration of independence is sealed in a helium container for that purpose)
Why down? Because there are more electron shells, resulting in a greater distance between the valence electrons and the nucleus. This reduces the attraction.
good luckkk daddyyyyyyy
Answer:
Most metals have <u>luster</u> which means they <u>reflect</u> light
Explanation:
When light, which is made up of energetic photons, comes in contact with the surface of a metal, it is absorbed due to the corresponding energy gaps present between the metal orbital. The absorbed photons results in the raising of the energy levels of electrons within an atom of the metal which later drop back to a lower energy level and re-emit the photons which can now be observed as the metallic luster.
Answer:
14
Explanation:
there are 14 electrons in the shells
Answer:
C. Alkaline Metal ok thanks
Conduction is the movement of heat through a substance by the collision of molecules. At the place where the two object touch, the faster-moving molecules of the warmer object collide with the slower moving molecules of the cooler object.
