Question

answer this please!!!!!​

Answer 1

Answer:

a)Decrease across the period

b)ionic size trend is opposite to atomic size

Explanation:

a) Because N which was lacking 3 electrons to become stable, now lacking in 4 electrons, on the other hand C is has an equal possibility to become stable and unstable. O lack 2 electrons to become stable.

b)On Adding 1 electron to Cl, other electrons of Cl repel that electron, resulting in increase in size. On removing 1 electron from K , one orbit is decresed , resulting in small size .