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Electron affinity generally increases across a period and decreases down a group due to atomic size and electron-electron repulsion in smaller atoms. Among halogens, chlorine has a higher electron affinity than fluorine due to its larger size allowing easier addition of an electron, making the order I < Br < Cl < F.
Consider a function f(x) = x4 + x3 + x2 + x + 1, where x is a positive integer greater than 1. What will be the rema...
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If (a + b) = 7 and ab = 9, then find the value of (a2 + b2).
A certain number of students from school X appeared in an examination and 30% students failed. 150% more students than those from school X, appeared in ...
[a/(2a² + 5a + 2)] = 1/6 , then find the value of (a+1)/a ?
If 2x + (1/9x) = 5, then find the value of 81x2 + (1/4x2) - (1785/4)
If a, b and c are integers such that a 2 + b 2 + c 2 = 228, a + b + c = 26 and b = c, then find the value of a?
If x – 1/x = 9, then x3 – 1/x3 is:
If, 4x2 + y2 + 12x + 6y + 18 = 0, then find the value of (2x + y)/(y + 6x).
