The diagram shows an investigation where four materials are added to pure water and then stirred.
- 6-3
O
og herg
Meng
Observations of the water are made before and after the materials have been stirred. Which BEST
describes this investigation?
This investigation is testing solubility which is a physical property.
This investigation is testing reactivity which is a chemical property.
This investigation is testing solubility which is a chemical property
This investigation is testing reactivity which is a physical property.

the maximum mass of nh3 is nh3 in grams

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.