Option B:
Global climate is complex, so changes in global climate are hard to predict.
Which sentence from "Black Hole Beginnings" contains a cause-and-effect relationship?
More matter mounts up on the outside, increasing the pressure on the inside.
Instead it is a dramatic melding, or blending, of atoms, called nuclear fusion.
Each atom has its own tiny center, or nucleus.
Surrounding each nucleus is an electrical force field..
Answer:
Calcium for 2+ charge and Fluorine forms 1- charge
Explanation:
The number of electrons in the outermost shell of an atom determines<span> its </span>reactivity<span>.</span><span>
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