Plzzzzz help... What causes specific lines to appear in a line spectrum?

Chemistry

1 answer:

Sauron [17]3 years ago

7 0

Answer:

Spectral lines are produced by transitions of electrons within atoms or ions. As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.…

Explanation:

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lidiya [134]

The given question is incomplete. The complete question is :

Which anion would bond with K+ in a 1: 1 ratio to form a neutral ionic compound?

a) $O^{2-}$

b) $F^{-}$

c) $N^{3-}$

d) $S^{2-}$

Answer: b) $F^{-}$

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here potassium is having an oxidation state of +1 called as cation and thus is an anion must have an oxidation state of -1 if they have to combine in 1: 1 ratio to give neutral ionic compound.

Thus the anion has to be $F^-$ which combines with $K^+$ in 1: 1 ratio to give $KF$