Respuesta :
Alkaline earth metals tend to have positive electron affinity values because alkaline earth metals have little tendency to pick up an extra electron.
The alkaline earth metals, represented by the elements beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium, belong to group 2A (or IIA) of the periodic table (Ra). Compared to the Group 1A alkali metals, they are tougher and less reactive. The valence electrons in alkaline earth metals are two.
Low electronegativity, low electron affinity, and low ionization energy characterize them.
They are very reactive and frequently produce divalent cations.
They function well as electrical conductors.
The change in energy (measured in kJ/mole) of a neutral atom (in the gaseous phase) caused by the addition of an electron to create a negative ion is known as electron affinity. In other words, the neutral atom's propensity to attract an electron is known as its electron affinity. X (g) + e = X g + E
Learn more about alkaline earth metals here :
https://brainly.com/question/12835232
#SPJ4
Otras preguntas
