Need help fast please I am timed and giving 47 points. Four groups of students plan scientific investigations to answer four questions for the science fair.

Questions for Science Fair:

1-What kinds of plant life grow naturally in the town parks?

2-Which types of treats do different breeds of dogs like best?

3-Do different types of grass affect how far a ball rolls?

4-How are the chemicals in different vegetables similar?

Which question would most likely be answered with an experimental investigation?

A-1
B-2
C-2
D-4

i think its 100.

hope this !

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.