Question 12 The diagram shows what happens when a blue soluble crystal is placed in a beaker of
water.
Water
After several hours
Blue
solution
Blue
crystal
Which row correctly describes the processes taking place?
Chemical process
Dissolving
Diffusion
A
✓
B
Х
Х
с
✓
Х
D
X Х
(1 mark]

d.) circle motion requires a force to give it a centripetal acceleration.

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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.