Answer:
1
Explanation:
outershell atoms of an element are also known as valency of that element
so the valency and number of elctron in the outershell of a sodium atom is +1.
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when she reaches for the cup that is somatic nervous system. when she begins to cough
Answer:
solid change directly into a vapor in the process known simply as freezing
A. 1,2,3. The solutions are getting lighter meaning the concentration is decreasing. Its most likely that water was added to dilute the solutions.
Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.
