4 points Rank barium, beryllium, strontium & calcium in terms of increasing
electronegativity. Support your claim using evidence from atomic
structure and reasoning from what the property means and how it is
affected by the 2 factors of coulombic attraction.*

If two objects at different te,peraure are in contact with each other what happens to their temperature

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products