When children are young and go to the doctor, the doctor will give them booster shots. This re-exposes the children to a dead portion of a disease to help them build immunity. Which type of immunity is described?

2b2t

explanation:

2b2t

c. is the answer

by love gaming

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.