Question

if two atom A,B with atomic number 9 and 10. which one will be most electro negative?​

Answer 1

Answer:

the atom with atomic no. 9 will be most electronegative

Explanation:

as this atom has the most electron affinity

Answer 2

Answer:

Atomic number 9 will be more electronegative

Explanation:

As we go across a period , electronegative increases .

so, according to this rule atomic no 10 will be more electronegative bt at no 10 is a noble gas