Which has the highest electronegativity value?
A
hydrogen
B
calcium
C
helium
D
fluorine d because fluorine has a higher group number
The answer is dissolved in water, because in chemistry, (aq) is shorthand for aqueous solution.
Your answer is B because elements within the same column have equal numbers of valence electrons which determines the reactivity of an element.
6.009 x 10^3. You have to put 6009 into a decimal that is less than 10. Count backwards from 9 until you get to a single digit. You would move the decimal back three places making it 10^3