Barium (Ba) has the lowest electronegativity of the choices you have given.
The electronegativity of Calcium (Ca) is 1
The electronegativity of Strontium (Sr) is 0.95
The electronegativity of Magnseium (Mg) is 1.31 (has the highest)
The electronegativity of Barium (Ba) is 0.89
Of the list above, you can see that Barium has the lower level of electronegativity (0.89). Therefore, the correct answer is D.
Let me know if you need further info.
- Dotz
<span>Sugar is mixed with wateer, equilibrium is reached in the dissolved sugar molecules are evenly distributed throughout the solution.</span>
They speed up reactions by lowering activation energy. Many enzymes change shape when substrates bind.
Sodium has 1 valence electron and chlorine has 7 valence electrons and the goal is to get t 8 valence electrons then they attract together, forming table salt.
Li is in group 1 so it has same number of valence electrons as hydrogen.
hope it helps.
