Question

2012
(a) Choose the correct answer from the option : An element
in period 3 whose electron affinity is zero.
A. Neon B. Sulphur C. Sodium D. Argon
(b) Give reason :
(i) Ionisation potential of the element increases
across a period from left to right. (2018)
(iii) Alkali metals are good reducing agents. (2018)
(c) There are three elements E, F, G with atomic numbers
19, 8 and 17 respectively -
Classifiy the above elements as metals and non-metals.
(d) Name : A metal present in period 3, group I of the
periodic table.​

Answer 1

Answer:

the element in the third period who's electron affinity is zero is NEON