Answer:
concentration of mitochondria
Explanation:
Answer:
Engineers changed the world, such as building houses, bridges, and cars.
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D, you can't see ultraviolet rays and other similar frequency waves with the naked eye.
Answer:
Lose two electrons.
Explanation:
Barium is present in group 2.
It is alkaline earth metal.
Its atomic number is 56.
Its electronic configuration is Ba₅₆ = [Xe] 6s².
In order to attain the noble gas electronic configuration it must loses its two valance electrons.
When barium loses it two electron its electronic configuration will equal to the Xenon.
The atomic number of xenon is 54 so barium must loses two electrons to becomes equal to the xenon.
