Radium (Ra) Z = 88.
7th period because atomic size down the group increases. And Alkali Earth metals are found only in Group 1. The element is in Group 1 and period 7
Radium (Ra), atomic number 88, is the most reactive alkaline earth metal. It has the most energy levels of all the alkaline earth metals therefore it's electrons are more easily taken away.
The electronegativityÊ of alkaline earth metals decreases as you go down the group due to increase in atomic radius. The earth alkaline metals are beryllium, magnesium, strontium, barium and radium. Radium has the smallest electronegative.
reactivity
Radium. Elements with an atomic number greater than 83 are always radioactive.
Barium is the largest alkaline earth metal atom in terms of atomic radius.
Atoms with the largest atomic radius will be found in the lower left corner of the periodic table, specifically in the alkali metals and the alkaline earth metals groups. This is because these elements have the fewest protons in their nucleus relative to their electron cloud, resulting in a larger atomic size.
Barium is the largest alkaline earth metal due to its larger atomic size compared to the other alkaline earth metals like magnesium, calcium, strontium, and radium.
7th period because atomic size down the group increases. And Alkali Earth metals are found only in Group 1. The element is in Group 1 and period 7
Radium (Ra), atomic number 88, is the most reactive alkaline earth metal. It has the most energy levels of all the alkaline earth metals therefore it's electrons are more easily taken away.
The electronegativityÊ of alkaline earth metals decreases as you go down the group due to increase in atomic radius. The earth alkaline metals are beryllium, magnesium, strontium, barium and radium. Radium has the smallest electronegative.
The pattern between atomic radius and melting points in alkaline earth metals or period 2 metals is due to the relationship between the attractive forces within the atoms (which decrease with larger atomic radius) and the intermolecular forces that hold the atoms together in the solid state. As atomic radius increases, the intermolecular forces become weaker, making it easier for the metal to melt at a lower temperature.
The electronegativityÊ of alkaline earth metals decreases as you go down the group due to increase in atomic radius. The earth alkaline metals are beryllium, magnesium, strontium, barium and radium. Radium has the smallest electronegative.
Beryllium has the lowest atomic number among the alkaline earth metals.
Atoms with the smallest radii in the alkaline-earth group are found at the top of the group, such as beryllium. This is because as you move down the group, additional electron shells are added, increasing the atomic radius.
The alkali earth metal with the smallest atomic radius would be beryllium(Be), number four
Barium has the largest electron affinity among the alkaline earth metals.