Hosphorus-32 in a test on plant growth but forgot to recorde the start date. When he measured the phosphorus -32 at a later date, he only found 2.5g remained. If the
half life of phosphorus -32 is 14 days, how many days ago did he start the experiment?

it is a good conductor

explanation:

answer; natural resources;

може ли да зареждате повече информация, моля

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.