Answer:
Calcium (Ca)
Explanation:
If you look in your reference table next to each element in the top right corner it shows their charge whether it be positive, negative or zero
3rd Answer. Rays reflect in random directions
No, xenon will not react on Nitrogen because xenon only reacts with oxygen and fluorine. Xenon only reacts with the 2 elements because these 2 elements contain a strong electronegative element which is high in energy barrier that can move the electrons inside xenon elements. Xenon is an element with a symbol of Xe, it is odorless and colorless gas. Common uses of xenon are flash lamps and arc lamps. Xenon is a luminous element, it glows when placed near to high voltage electric field.