An ion from a given element has 20 protons and 18 electrons.
1 answer:
Explanation:
charges is +2
elements is CALCIUM
Symbol is Ca++
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B
Explanation:
962,320 J
230 nutritional Calories in Joules is 962,320 J
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m=(0.92g/ml)(100ml)
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The third one makes the most sense
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I dn't mnoefbv
Explanation:
Gr
