Answer:
Xe
Explanation:
Cs and Na are solids in room temperature while F and Xe are gases.
The number of electrons in the outermost shell of an atom will determine its reactivity. Out of the gases given Xe and F, F ( the most electronegative element) posses 5 valence shell electrons which makes it highly reactive while Xe which is a noble gas posses 8 valence shell electrons which makes it less reactive compared to many elements.
Answer:
well the 1 or 3 is my guess
Explanation:
The 1 is my main answer but 3 is a possibilty i suppose
I think the correct answer is b
The answers you need are:
D
E
C
A
B
