Phosphorous
In terms of reactivity, Potassium(K) is the most reactive element among group 1 elements.
The expected answer is element 115, Ununpentium, if that has been discovered. Among stable elements, the answer would be bismuth.
Chlorine is a group 17 element and has the highest electronegativity among the elements given.
The electron configurations of the elements in each main group are regular and consistent:the elements in each group have the same number of valence electrons.
Si
The element with the highest first ionization energy in group 14 is carbon.
Of the Group 1 elements stated (Na, K, Rb, Cs), Caesium is the largest as it is the furthest down the group, and Sodium is the smallest of those as it is furthest up the group.
No, phosphorus is just a nonmetal element.ANSWERPhosphorus is the eleventh most abundant element in the Earth's crust at about 0.12% or 1000 ppm.
group 2 elements are alkaline elements.one of the element in d group is berrylium
Group one elements are the most reactive with group 7 elements as it is the easiest way for the elements to complete their outer shell as the group one element gives its extra electron to the group 7 element and then the group 7 element has a full shell too.
In a single replacement reaction, the element that is most active is the one that is higher up on the reactivity series than the element it is trying to replace. The more active element will displace the less active element in the reaction.
the group three elements are (boron,alminium)