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has the lowest lUllllllllllll (2) (a) From what know a general way about electro

ID: 509400 • Letter: H

Question

has the lowest lUllllllllllll (2) (a) From what know a general way about electron affinities, state which in has the langer value? member of the following pair ofelements Na, S with of the following (b) Match each of the characteristics ii, and iv)below one (C affinity. elements: Sodium (Na, (Sb), Argon (Ar large negative electron Areactive nonmetal, the atom has a energy. A soft metal, the metal has a low ionization Rzoo. (ii A metalloid, that forms an oxide of formula, (iv) A chemically unreactive gas.

Explanation / Answer

(a) along a period electron affinity increases. Therefore sulfur will have higher negative value of electron affinity.

(b) chlorine is reactive non metal with larger negative electron affinity

Sodium is soft metal with low ionisation energy

Arsenic is metalloid that forms oxide with formula As2O3

Argon is chemically unreactive gas