Which of the following ions would represent the ion of an element from group 2a?
a. x2-b. y3+c. z+d. a2+

D. A²⁺

Explanation:

Element from Group 2A -

The element of group 2A are known as the alkaline earth metals ,

The elements of this group are - beryllium (Be) , magnesium (Mg) , calcium (Ca) , strontium (Sr) , barium (Ba) , and radium (Ra).

The valence shell of these elements have two valence electrons and therefore , if the element need to stabilizes itself , it need to lose these two electrons and attain noble gas configuration,

Therefore ,

After losing the two electrons , the element becomes A²⁺.

Hence , the ions are symbolized as A²⁺.

i think it is d. e because the next one is igneous.

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!