Question

A chemist performs a series of reactions that produce binary lithium compounds. The elements include sulfur, chlorine, nitrogen, fluorine, selenium, oxygen, and iodine.

Answer 1

A chemist performs a series of reactions that produce binary lithium compounds. The elements include sulfur, chlorine, nitrogen, fluorine, selenium, oxygen, and iodine. The models below represent the ionic radii of compounds formed by reacting lithium with three of the elements.

a. Identify the three compounds that the models represent. Explain your answer.

b. Write a hypothesis that the chemist might use when investigating another periodic trend of various elements.

Answer 2

@aaronq @JoannaBlackwelder @Kainui

Answer 3

Since we know that lithium is part of the binary compound, I would think that the halogens would most readily form binary compounds since they want 1 more electron and Li wants to give away 1 electron.

Answer 4

But that is just a guess...

Answer 5

What do you think?

Answer 6

so F, Cl, and I? Which of them would be which? Would it go just by atomic size?

Answer 7

@JoannaBlackwelder

Answer 8

That's what I would do...

Answer 9

so
F biggest
Cl medium
I smallest?

Answer 10

how do I do part B?

Answer 11

The other way around.

Answer 12

I is the largest.

Answer 13

oh right.

Answer 14

that's what i meant

Answer 15

:)

Answer 16

but part B is so confusing I don't even know where to start

Answer 17

Maybe something about that elements of one column tend to make binary molecules with other elements when the sum of all their valence electrons is 8. Or something like that.

Answer 18

Does that make sense?

Answer 19

yeah I'll figure something out. thanks though.

Answer 20

No worries