refer to data table 2. describe how the period of the pendulum is related to the amplitude or angle of the string when released.

q2 refer to data table 2: list the dependent variable (remember: the experimenter chooses and manipulates the independent variable).

q3 refer to data table 2: list controls variable. (remember: controls are factors that remain the same throughout the experiment)

i’ll give brianlist promise

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.