Show the conversion factor from cm2/stoft2/hris 3.875.

Explanation:

In 1 centimeter square there are 0.00107639 square feets.

In 1 hour there 3600 seconds.

1 seconds = 0.000277778 Hours

..(1)

On comparing with (1) we get:

3.875 is the conversion factor.

they are both synthetic elements

explanation:

d

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.