Based on location in the periodic table, which element has chemical properties that most closely resemble iodine (I)? A. selenium (Se)
B. fluorine (F)
C. xenon (Xe)
D. calcium (Ca) 1. fluorine (F)
2. eight
3. phosphorus (P)
4. Hydrogen shares one valence electron with carbon and oxygen shares two valence electrons.
5.N2
Valence Electrons Quick Check 100% Thank goodness for clapzcheekz clapzcheekz is 100% correct on the valence electons connexus quick check see over there to the right just before the column of noble gases is a column of highly reactive elements called halogens (group 7) who want an extra electron to fill their outer shell.
F
CL
BR
I
At Clapz it is correct. clapzcheekz is correct except for number 4. The answer is D, The carbon in methane has more valence electrons to share than the carbon in carbon dioxide.