Cover with metal .Any elements other than hydrozen and helium concentration shows an absorbance
Answer:
Six electrons.
Explanation:
A carbon atom has six protons, so it must have six electrons.
A nuclear reaction<span> in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new type of atomic nucleus.
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Answer:
3.5hrs
Explanation:
Using the formula Speed = Distance/Time
Given
Speed = 8mi/hr
Distance = 28miles
Get the time
Time = Distance/Speed
Time = 28/8
Tme = 3.5hrs
Hence it will take 3.5hrs to travel
Answer: A. Sun, Moon, Earth